A water tank of dimension 2m×5m×8m filled to the brim will have maximum pressure of ------ (Relative density of the material of the tank is 1.8 and r.d of water
i will give brainlest​

Answer:

F = 30,000 N

Explanation:

Newton's second law

F = m*a

F = 6000 kg * 5.0 m/s^2

F = 30,000 N

The mass number of an atom is the sum of its number of its number of protons and number of neutrons. Hence the oxygen atom with 10 neutrons and 10 electrons has a 8 protons thus has the mass number of 18 .

Mass number if a basic measurement of an atom indicating the mass of the nucleons in the atom by their number. The mass number of an atom is the sum of its number of protons and number of neutrons.

The atomic number of an atom is the number of electrons in its neutral state. The number of electrons is equal to the number of protons in neutral state. Oxygen is 8th element having 8 protons and 8 electrons.

Oxygen can gain two electrons to achieve octet in its valence shell and can have total 10 electrons. However the number of protons is not changing. Hence if it has 10 neutrons, then its mass number is 10 +8 = 18.

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The four main components of WHMIS 2015 of the system are worker education and training, labelling, hazard identification and product classification, and safety data sheets (SDS). The correct answer is True.

WHMIS 2015 is a comprehensive system designed to ensure the safe use, handling, storage, and disposal of hazardous chemicals in Canadian workplaces. Worker education and training are essential to ensure that workers understand the hazards associated with the chemicals they use and how to work safely with them. Labelling helps to identify hazardous products and communicate the hazards to workers, while hazard identification and product classification ensure that hazardous products are properly classified and labelled.

Finally, SDS provide detailed information on the hazards of a product and the precautions that need to be taken when working with it. All of these components work together to ensure that hazardous chemicals are handled safely and that workers are protected from harm.

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Answer:

3 mol/L

Explanation:

Molarity = No. of moles of solute/Volume of solution in L

Answer:

1.610 x 10^25 particles

Explanation:

To calculate the number of particles in 26.75 moles of potassium oxide, we can use Avogadro's number, which relates the number of particles in a substance to its number of moles.

Avogadro's number is approximately 6.022 x 10^23 particles per mole. Therefore, we can calculate the number of particles in 26.75 moles of potassium oxide as:

26.75 moles x 6.022 x 10^23 particles/mole = 1.610 x 10^25 particles

Therefore, there are approximately 1.610 x 10^25 particles of potassium oxide in 26.75 moles of the substance.

The number of moles of NaCl contained in 5 L of a 2.2 M solution is 11 moles

The molarity of a solution gives a relationship between volume and mole of substance. The mathematical relationship is given below:

Molarity = number of mole / Volume

With the above formula, we can determine the number of mole of NaCl in the solution. Details below:

Molarity = number of mole / Volume

Cross multiply

Number of mole = molarity × volume

Number of mole of NaCl = 2.2 × 5

Number of mole of NaCl = 11 moles

Thus, the number of moles of NaCl is 11 moles

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The type of solution would you have if you have a sealed container with 100g of water and 0.15g of dissolved CO₂ at 40°C is a saturated solution.

A saturated solution is a solution that has dissolved as much solute as it is capable of dissolving. In a saturated solution, no more solute can be dissolved at a given temperature. We can make an saturated solution by keep on dissolving solute until no more solute can be dissolved.

Given,

mass of water = 100g

mass of dissolved CO₂ = 0.15g  

Solubility = (weight of solute ÷ weight of solvent)×100

Solubility = (0.15 ÷ 100)×100 = 0.15g

Therefore, the type of solution would you have if you have a sealed container with 100g of water and 0.15g of dissolved CO₂ at 40°C is a saturated solution.

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Answer:

saturated

Explanation:

The mole ratio of Na₂CO3 to Al₂(CO3)3 can be determined by comparing the coefficients in the balanced chemical equation for the reaction involving these two compounds.

Mole ratio is a term used in chemistry to describe the relationship between the amount of two or more substances in a chemical reaction. It is the ratio of the number of moles of one substance to the number of moles of another substance involved in the reaction.

A mole is a unit of measurement used in chemistry to quantify the amount of a substance. One mole of any substance contains Avogadro's number of particles, which is approximately 6.02 x 10^23 particles. Therefore, a mole ratio describes the relative amounts of substances in terms of the number of moles.

The mole ratio of Na₂CO3 to Al₂(CO3)3 can be determined by comparing the coefficients in the balanced chemical equation for the reaction involving these two compounds.

However, since a reaction is not specified, I can't give you an exact answer.

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The density of a substance is its mass divided by volume. The density of the substance with a mass of 108.75 g and volume of 75 ml is 1.45 g/ml.

The density of a substance is the  measure of its mass per unit volume. Density describes how closely its particles are packed. The density of a substance depends on the bond type, molecular weight, temperature and pressure as well.

The floating property of a substance on a fluid depends on its density. If it has less density than the fluid it will float on it.

Given,

the mass of the object m = 108.75 g

volume = 75 ml

density = mass/ volume

d = 108.75 g /75 ml

   = 1.45 g/ml.

Therefore, the density of the substance with the mass of 108.75 g and 75 ml volume is 1.45 g/ml.

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Answer:

No picture shown above?

Answer: Your welcome!

Explanation:

Answer 1: Ice, water, sugar, lemon juice

Answer 2: Liquid in a gas

Answer 3: Saturated

Answer 4: Dissolution

Answer 5: Moles of solute/liters of solution

Answer 6: Strong electrolytes completely dissociate in water, weak electrolytes partially dissociate, and nonelectrolytes do not dissociate.

Answer 7: Molarity

Answer 8: Saturated

Answer 9: Freezing-point depression

Answer 10: Silver chloride (AgCl)

Explanation:

Refer to pics.............

According to the molar concentration, if the student needs 250 ml of the diluted solution, 50 ml of the original solution should be used and in second case 0.29 liters of the solution should be used.

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.Substitution in second  formula gives volume= 0.36/1.25=0.288 liters. and in case of 2 solutions it is calculated as, M₁V₁=M₂V₂ and on substitution gives V₁=0.1×250/0.5=50 ml.

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Answer: highwinds and earthquake

Explanation:

"What does a tuned mass damper do?

Image result for tuned mass damper

A Tuned Mass Damper (TMD), also called a "harmonic absorber", is a device mounted to a specific location in a structure, so as to reduce the amplitude of vibration to an acceptable level whenever a strong lateral force such as an earthquake or high winds hit"

Answer:

1.67*10^9

Explanation:

Answer:1.67*10^9

Explanation:

Knowing each element's mass and molar mass allows one to compute the percentage of zinc and copper that is present in a coin.

The mass in grams from one mole of a chemical is its molar mass. A mole is the measurement of the number of things, such as atoms, molecules, and ions, that are present in a substance. Any material has 6.022 x 1023 molecules in a mole.

A substance's molar mass is the volume of the material that contains one mole of the substance. Its basic definition seems to be the weight of a single mole of a substance. The atomic mass of the each substance then multiplied by the subscript of such a element inside the chemical formula to determine the molar mass.

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Wavelength (L) is calculated using: L = gT²/2π, here g=9.8 m/s2 and T is wave period in seconds.

Wavelength of a wave describes how long the wave is and the distance from the "crest" (top) of one wave to the crest of next wave is called wavelength. We can also measure from the "trough" (bottom) of one wave to trough of next wave and get the same value for the wavelength.

We measure wavelength in following ways:

Use photometer to measure the energy of wave.

Convert energy into joules (J).

Divide energy by Planck's constant, 6.626 x 10⁻³⁴, to get the frequency of  wave.

Divide speed of light, ~300,000,000 m/s, by frequency to get wavelength.

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In magnesium hydroxide, magnesium makes up 41.7% of the compound by mass, and oxygen makes up 55.1% of the compound by mass. The remaining percentage would be hydrogen.

What is Percentage Composition?

Percentage composition refers to the relative mass of each element in a chemical compound expressed as a percentage of the total molecular mass of the compound. In other words, it is the percentage by mass of each element present in a compound.

To determine the percent composition of magnesium hydroxide in a substance, we need to know the mass of magnesium hydroxide in the substance and the total mass of the substance.

Without knowing the substance in question, we cannot determine the mass of magnesium hydroxide. However, we can use the chemical formula of magnesium hydroxide (Mg(OH)2) to calculate the mass percent of magnesium and oxygen in the compound.

The molar mass of magnesium hydroxide is:

24.31 g/mol (for Mg) + 2(15.999 g/mol) (for 2 O) + 2(1.008 g/mol) (for 2 H) = 58.32 g/mol

The mass percent of magnesium in magnesium hydroxide is:

(24.31 g/mol / 58.32 g/mol) x 100% = 41.7%

(2 x 15.999 g/mol / 58.32 g/mol) x 100% = 55.1%

Therefore, in magnesium hydroxide, magnesium makes up 41.7% of the compound by mass, and oxygen makes up 55.1% of the compound by mass. The remaining percentage would be hydrogen.

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Energy in chemical reactions involves the process in which it is absorbed to break bonds, and energy is evolved as bonds are made.

This is referred to as a process in which one or more substances, the reactants, are converted to one or more different substances, the products.

According to the modern view of chemical reactions, bonds between atoms in the reactants must be broken, and the atoms or pieces of molecules are reassembled into products by forming new bonds. All chemical reactions involve energy changes ad in some reactions, we are able to observe these energy changes as either an increase or a decrease.

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Assume that, the distance between A to B is 10 cm. Then the plate is moving 2.05 cm per year. Then it will take about 5 years to move a distance of 10 cm.

The continent of Antarctica, the Kerguelen Plateau, and a few isolated islands in the Southern Ocean and other nearby oceans are all part of the tectonic plate known as the Antarctic Plate.

The Antarctic plate started migrating the continent of Antarctica south to its present remote location when it split from Gondwana  which caused the continent to have a considerably colder climate. Extensional mid-ocean ridge systems almost fully surround the Antarctic Plate.

It is given that the plate moves a distance of 2.05 cm per year. Then if the distance between point A to B is 10 cm, it will take about 5 years to reach this distance.

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The minimum volume of a 0.100 M calcium hydroxide solution required to neutralize all of the dimethylglycine is 41.2 mL.

The balanced chemical equation for the reaction between dimethylglycine and calcium hydroxide is:

N(CH3)2CH2COOH + Ca(OH)2 → Ca(N(CH3)2CH2COO)2 + 2H2O

From the equation, we can see that 1 mole of dimethylglycine reacts with 1 mole of calcium hydroxide. We can use this information to calculate the amount of calcium hydroxide required to neutralize the acid.

First, we need to determine the number of moles of dimethylglycine in the sample:

molar mass of dimethylglycine = 115.13 g/mol

number of moles = 475 mg / 1000 mg/g / 115.13 g/mol = 0.00412 mol

Since 1 mole of dimethylglycine reacts with 1 mole of calcium hydroxide, we need 0.00412 mol of calcium hydroxide to neutralize the acid.

Finally, we can use the molarity of the calcium hydroxide solution to determine the volume required:

moles of Ca(OH)2 = 0.00412 mol

volume of Ca(OH)2 solution = moles / molarity = 0.00412 mol / 0.100 mol/L = 0.0412 L

Converting this to milliliters:

volume of Ca(OH)2 solution = 41.2 mL

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Soil is a mixture of organic and inorganic materials that forms the uppermost layer of the Earth's crust. It is a complex, three-dimensional matrix of mineral particles, organic matter, water, air, and living organisms. Soil provides critical habitat for various microorganisms, insects, plants, and animals, making it a key component of terrestrial ecosystems.

Soil is formed through weathering, which breaks down rocks and other materials into smaller particles. Various factors, including temperature, moisture, wind, and the activities of living organisms, influence this process. Over time, layers of organic matter accumulate on the soil's surface, creating a rich environment for plant growth.

Soil has several important functions, including supporting plant growth, regulating water flow, and cycling nutrients. It also plays a key role in carbon sequestration, helping mitigate climate change's impacts by storing carbon in the form of organic matter.

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Ammonia and phosphoric acid are the reactants for the reaction 9, for the formation of Ammonium Phosphate.

What are ionic reactions?

Ionic reaction is the reaction of ions that are anions and cations to form a compound in a medium in which they are dissolved. When ions of water-soluble salts interact with each other in aqueous medium results in the formation of water-insoluble salts.

9) 3NH₃ + H₃PO₃ → (NH₄)₃PO₄

10) CaCO₃ + HCl → CaCl₂ + H₂CO₃

11) SnO₂ + HCl → SnCl₂ + H₂O

12) Ca(OH)₂ + HNO₃ → Ca(NO₃)₂ + H₂O

13) C₃H₅O(COOH)₃ + 3KOH → C₃H₅O(COOK)₃ + 3H₂O

14) 2Mg + C₃H₅O(COOH)₃ → (C₃H₅O(COO)₃)Mg₂ + H₂

15) H₃PO₄ + 3KOH → K₃PO₄ + 3H₂O

Therefore, Ammonia and phosphoric acid are the reactants for the reaction 9, for the formation of Ammonium Phosphate.

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The answer for this question would be pH=3.0

Hope this helps :)

pH of HCl solution is 4.

pH may be defined as a measure of free acidity.

More precisely, pH is defined as the negative log of the hydrogen ion concentration.

                                                      pH = - log [H⁺]

The range of pH extends from zero to 14.

A pH value of 7 is neutral, because pure water has a pH value of exactly 7. Values lower than 7 are acidic; values greater than 7 are basic or alkaline.

Given,

Moles of HCl = 10⁻⁴

We know that, pH = - log [H⁺]

                         pH = - log (10⁻⁴)

                            pH = 4

Therefore, H⁺ concentration in a solution with a pH of 3.75 is 1.7 × 10⁻⁴

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The mass of Fe2S3 formed would be 12.0 g

The limiting reactant is iron (Fe)

The percent yield of iron (III) sulfide would be 108.4%

Fe + S -> FeS

From the equation, we see that one mole of Fe reacts with one mole of S to produce one mole of FeS. To determine the mass of FeS that can be formed, we need to determine which reactant is limiting and which is in excess.

Number of moles of Fe = mass / molar mass = 7.62 g / 55.845 g/mol = 0.136 moles

Number of moles of S = mass / molar mass = 8.67 g / 32.06 g/mol = 0.27 moles

We see that Fe is limiting because there are fewer moles of Fe than S. The stoichiometry of the reaction tells us that one mole of Fe produces one mole of FeS.

The mass of FeS that can be formed is:

mass = number of moles × molar mass

mass = 0.136 moles × 87.91 g/mol (molar mass of FeS)

mass = 12.0 g

percent yield = actual yield / theoretical yield × 100%

percent yield = 13.01 g / 12.0 g × 100%

percent yield = 108.4%

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Over-watering and aggressive plowing can have a variety of negative effects on the land used for crop production.

How are these activities likely to have impacted the land?

Some potential consequences of these practices include:

Overall, these activities can have a negative impact on the health of the land and reduce its productivity over time. To mitigate these effects, it may be necessary to adopt more sustainable farming practices, such as conservation tillage and crop rotation, that help to preserve the health of the soil and maintain its productivity.

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The answer to this question depends on the reaction that is taking place.

Reaction is the process of responding to a stimulus. It is an instinctive response to an event, person, object, or situation. It can be conscious or unconscious, rational or irrational. Reactions can be physical (e.g. facial expressions, body language, etc.) or mental (e.g. thoughts, feelings, beliefs, attitudes, etc.). Reactions can vary from person to person, depending on the individual's beliefs and experiences. Reaction is often used to evaluate the success of a stimulus or to measure the intensity of a response.

If the reaction involves the combination of Hg and O2, then the amount of Hg produced will be the same as the amount of O2 produced, which in this case is 310.71 grams. However, if the reaction involves the decomposition of HgO2, then the amount of Hg produced will be twice the amount of O2 produced, which in this case would be.621.42 grams.

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The number of phases present is two.

There are two phases present in sweetened iced tea with sugar and ice cubes. The first phase is the liquid phase of the tea, which contains water, sugar, and other dissolved substances.

The second phase is the solid phase of ice cubes, which contains solid water molecules. These two phases are in contact with each other, and the sugar molecules in the liquid phase are dissolved in the water molecules.

The ice cubes, being a solid, do not dissolve in the liquid phase but coexist with it in the same container.

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Using the masses of reactants and products the balanced chemical equations are:

a)C₃H₈ + 5O₂ ⇒ 3CO₂ + 4H₂O

b) C₂H₅OH  + 3O₂ ⇒ 2CO₂ + 3H₂O

c) C₁₄H₃₀ ⇒ C₇H₁₆ + C₃H₈ + 2C₂H₄(cracking)

Equations are balanced when they have the same number of each element on both the reactant and product sides. Equations need to be balanced in order to express the conservation of mass rule appropriately.

To balance chemical equations, stoichiometric coefficients for the reactants and products are necessary. Because a chemical equation must adhere to the rules of conservation of mass and constant proportions, the reactant and product sides of the equation must have an equal number of atoms of each element.

Long chain hydrocarbons, also known as kerogens, are complex chemical molecules that can be broken down into lighter, simpler molecules by a process called cracking. It results from the dissolution of carbon-carbon bonds. The presence of a catalyst and temperature are two elements that have a significant impact on the catalyst rate.

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Bond A is considered to be a coordinate covalent bond because nitrogen provides a pair of electrons to be shared with hydrogen. That is option C.

A covalent bond is the type of bond that is formed when two different atoms share a pair of electrons in their outermost shell.

A dative or coordinate covalent bond is defined as the type of covalent bond where by the both electrons that are to be shared are supplied by the same atom.

Using ammonium for example, the pair of electrons shared between the ammonia and hydrogen ion is from the Nitrogen of ammonia.

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Ce(IO3)3 will not precipitate from the solution.

To determine if Ce(IO3)3 will precipitate from the solution, we need to calculate the concentration of Ce3+ and IO3- ions in the solution, and then use the solubility product constant (Ksp) to determine if a precipitate will form.

First, let's calculate the number of moles of Ce(NO3)3 added to the solution:

nCe(NO3)3 = (750.0 mL) (4.00 x 10^-33 mol/L) = 3.00 x 10^-30 mol Ce(NO3)3

Next, let's calculate the number of moles of KIO3 in the solution:

nKIO3 = (300.0 mL) (2.00 x 10^-2 mol/L) = 6.00 x 10^-3 mol KIO3

Since KIO3 is a strong electrolyte, it will dissociate completely in solution, giving us the same number of moles of IO3- ions:

nIO3- = 6.00 x 10^-3 mol

Since Ce(NO3)3 is also a strong electrolyte, it will dissociate completely to give us 3 times the number of moles of Ce3+ ions:

nCe3+ = 3.00 x 10^-30 mol x 3 = 9.00 x 10^-30 mol

Now, let's calculate the concentration of Ce3+ ions:

[Ce3+] = (9.00 x 10^-30 mol) / (1050.0 mL) = 8.57 x 10^-34 M

Finally, we can calculate the ion product (IP) of Ce(IO3)3:

IP = [Ce3+] [IO3-]^3 = (8.57 x 10^-34)^1 (6.00 x 10^-3)^3 = 7.34 x 10^-41

Comparing this value to the Ksp of Ce(IO3)3 (1.9 × 10^-10), we see that IP << Ksp.

Therefore, Ce(IO3)3 will not precipitate from the solution, and the solution will remain homogeneous.

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