Describe the preparation
of 2.00h of o.108m Bach
from Bad. 28 (244-3 g/mal)​

Answer:

ρ = 2.07 g/mL

Explanation:

Step 1: Given data

Step 2: Calculate the density (ρ) of the block G

The density is an intrinsic property, equal to the mass of the block divided by its volume.

ρ = m/V

ρ = 49.231 g/23.8 mL

ρ = 2.07 g/mL

The density of the block G is 2.07 g/mL.

Answer:

1. mol/L

2. 0.120 M

Explanation:

1. Molarity is equal to the moles of solute divided by the liters of solution. The units of molarity are mol/L.

2.

Step 1: Given data

Step 2: Calculate the moles of solute (n)

The molar mass of NaCl is 58.44 g/mol.

n = 5.25 g × 1 mol/58.44 g = 0.0898 mol

Step 3: Determine the molarity of the solution

We will use the definition of molarity

M = n/V

M = 0.0898 mol / 0.7500 L = 0.120 M

Answer:

Flask d

Explanation:

I promise u it’s flask d

Answer: 3 moles of HCl

Explanation: let’s do a balanced chemical equation

Al(OH)3 + 3HCl —> AlCl3 + 3H2O

We see that for every 1 mole of Al(OH)3 we need 3 moles of HCl

Answer:

1.204 x 10²⁴ atoms of oxygen in 1 mole of CO₂

Explanation:

1 mole of CO₂ contains 6.02 x 10²³ molecules of CO₂

1 molecule of CO₂ contains 2 atoms of oxygen

Therefore, Atoms of oxygen in 1 mole of CO2 => 6.02 x 10²³ molecules CO₂  x

2 atoms oxygen / molecule CO₂ = 2  X  6.02 X10²³ atoms of oxygen = 1.204x10²⁴ atoms of oxygen in 1 mole CO₂

Answer:

the answer is C galactose

Answer:

a. gluconic acid

Explanation:

Answer:

Option B. 0.5 N.

Explanation:

Data obtained from the question include:

Mass (m) = 1 Kg

Acceleration (a) = 0.5 m/s²

Force (F) =?

Force is defined as the product of mass (m) and acceleration (a). Mathematically, it is expressed as:

Force (F) = mass (m) × acceleration (a)

F = ma

Using the above equation, we can obtain the force exerted on the floor as follow:

Mass (m) = 1 Kg

Acceleration (a) = 0.5 m/s²

Force (F) =?

F = ma

F = 1 × 0.5

F = 0.5 N

Thus, the car exerted a force of 0.5 N on the floor.

Answer:

c maybe if right plz mark brainliest

Explanation:

Answer:

14

Explanation:

it 14 there are 14 neutrons

molar mass of potassium is 39.0983 g/Mol

using conversion factors

0.82 Mol K (39.0983 g/ 1 mol)

mol cancels out, leaves you w grams

answer: 32.1 grams K

Answer:

Synthesis

Explanation:

Answer:

2.64g of CO₂ are produced

Explanation:

The reaction of hexane with O₂ is:

C₆H₁₄ + 19/2O₂ → 6CO₂ + 7H₂O

To solve this question, we must convert each mass of reactant to moles in order to find limiting reactant and, with the chemical reaction we can find the moles of carbon dioxide produced and the maximum mass produced:

Moles hexane -Molar mass: 86.18g/mol-:

0.862g * (1mol / 86.18g) = 0.01 moles

Moles Oxygen -Molar mass: 32g/mol-:

5.1g * (1mol / 32g) = 0.16 moles

For a complete reaction of 0.01 moles of hexane there are required:

0.01moles hexane * (19/2 Oxygen / 1mol Hexane) = 0.095 moles oxygen

As there are 0.16moles, limiting reactant is hexane.

0.01 moles of hexane produce:

0.01 moles * (6 moles carbon dioxide / 1 mole hexane) = 0.06 moles of CO₂.

The mass is -Molar mass CO₂: 44g/mol-:

0.06 moles of CO₂ * (44g/mol) =

The two factors for a successful reaction to occur are collisions between particles with the right orientation and sufficient energy (A and B).

The kinetic theory is a model explaining the movement (motion) of particles in a given substance.

In conclusion, the two factors for a successful reaction to occur are collisions between particles with the right orientation and sufficient energy (A and B).

Learn more about the kinetic theory here:

https://brainly.com/question/25959744

#SPJ2

Answer:

23.1 x 10^11

Explanation:

(4.2x5.5) x (10^9x10^2)

23.1 x 10^11   (Add the exponents, and multiply the decimals.)

I hope this helped! :)

Answer:

V₂ = 1.48 L

Explanation:

Given data:

Initial volume = 1.23 L

Initial pressure = 755 mmHg (755/760 =0.99 atm)

Initial temperature = 0 °C (0 +273 = 273 K)

Final temperature = 50°C (50+273 = 323 K)

Final volume =  ?

Final pressure = 0.97 atm

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 0.99 atm × 1.23 L × 323 K / 273 K × 0.97 atm

V₂ = 393.32 atm .L. K / 264.81 atm.K

V₂ = 1.48 L

The answer to the above question is B.

The following chemical reaction KOH + HCl → KCl + H2O is a type of single replacement reaction and the salt is Pottasium chloride.

A single replacement reaction is a type of reaction that involves the substitution of one element in a compound with another.

The following reaction is given in this question;

KOH + HCl → KCl + H2O

Pottasium displaces hydrogen in this equation to form pottasium chloride salt. Therefore, it is a type of single replacement reaction.

Learn more about reactions at: https://brainly.com/question/17434463

#SPJ2

Answer:

D. 1.48atm

Explanation:

Van der waals equation is given as:

(P +an²/v²) (v - nb) = nRT

Where;

P = pressure (atm)

V = volume (L)

R = gas constant (0.0821 Latm/molK)

a and b = gas constant specific to each gas

T = temperature (K)

n = number of moles

According to the given information; V = 22.4L, T = 0.00°C (273.15K), R = 0.0821 Latm/molK, a = 6.49L^2-atm/mol^2, b = 0.0562 L/mol, n = 1.5mol

Hence;

(P + 6.49 × 1.5²/22.4²) (22.4 - 1.5×0.0562) = 1.5 × 0.0821 × 273.15

(P + 6.49 × 2.25/501.76) (22.4 - 0.0843) = 33.638

(P + 0.0291) (22.316) = 33.638

22.316P + 0.649 = 33.638

22.316P = 33.638 - 0.649

22.316P = 32.989

P = 32.989/22.316

P = 1.478

P = 1.48atm

Answer:

1. MG

2. N

3. F

4. NA

5. O

6. K

Answer:

Largest to Smallest: Na, K, Mg, N, O, F

Explanation:

A. Cytoplasm is the correct answer!

Answer:

3.75mL need to be added

Explanation:

M1 x V1 = M2 x V2

so V2=(M1xV1)/M2

(2.5Mx.015L)/2M= .01875L or 18.75ml

since we want to know how much needs to be added we subtract 18.75 from 15

Giving us 3.75ml need to be added

Answer:

2C2H6 + 7O2 → 4CO2 + 6H2O

Explanation:

First off you find them by balancing the equation ( equal amounts of elements on both sides) So add a two infront of the C2H6. Now you have 4 Carbons and 12 Hydrogens on the left aswell as 2 oxygens.

Now go to the right side and put a 4 infront of CO2 and a 6 infront of H2O. You now have 4 carbons 12 hydrogens and 14 oxygens on the right side.

Finally go back to the let side and place a 7 infront to make the left have 14 oxygens just like in the right. A trick to use is to save the coefficients with only one element till the end so you can do less work in the long run.

But i hope this helped its balanced and down to the smallest whole numbers possible most teachers want whole numbers as the coefficient.

These are tricky at first but once you practice a bit you will be a pro.

Answer:

2/3

Explanation:

Crystals structures can also be seen when two elements combines together and the perfect example is Al₂O₃ which is given in the question above. Just like it is given in the question above, the kind of arrangement in the crystal structure for Al₂O₃ is called HCP which stands for Hexagonally Closed Pack.

The aluminum ions which is in form of Al³⁺ occupies the two-third[2/3] positions while the position that the oxygen ion occupies is one[1].

Answer:

Magnets are only attracted to special metals. Iron, cobalt and nickel are magnetic. Metals that have iron in them attract magnets well. Steel is one.

Explanation:

Answer:

Diagram A: Balanced Forces

These forces are balanced, so the motion of the object stays the same. The object in the diagram could be sitting still, or it could be moving. But its motion is not changing. This is because the forces acting on it from opposite sides are exactly the same size.

Explanation:

Answer:

Because a balanced force can keep an object moving at a constant velocity.

Explanation:

Answer:

The correct answer is 1.10.

Explanation:

Based on the given information, the molarity of the NaOH is 0.15 M, that is, 0.15 moles per liter of the solution.

Now the moles present in the 15 ml of the solution will be,  

0.015 × 0.15 = 2.25 × 10⁻³ moles of NaOH or 0.0025 moles of NaOH

Now, molarity of the HNO₃ given is 0.20 M, which means 0.2 moles per liter of the solution.  

Now the moles present in the 30 ml of the solution will be,  

0.030 × 0.2 = 0.006 moles of HNO₃

Now the complete disintegration of acid and base will be,  

NaOH (aq) (0.025 moles) ⇔ Na⁺ (aq) (0.025) + OH⁻ (aq) (0.025 moles)

HNO₃ (aq) (0.006 moles) ⇔ H⁺ (0.006 moles) + NO₃⁻ (aq) (0.006 moles)

Now the additional Hydrogen ions at titration point is,  

= 0.006 - 0.0025 = 0.0035 moles of H+

Now the concentration of H+ ions in the 45 ml of the solution will be,  

= 0.0035/45 × 1000

= 0.078 M

pH = -log[H⁺] = -log [0.078]

= 1.10

Answer:

91.224 gram

Explanation:

Answer:

3.64896 grams Zr

Explanation:

Given: amount of moles of Zr: 0.040

Find: the amount of grams of Zr

1. Find molar mass of Zr

- after looking at the periodic table, you can tell it's 91.224 g/mol

2. Solve

([tex]\frac{0.040 mol Zr}{1}[/tex])( [tex]\frac{91.224 g Zr}{1 mol Zr}[/tex])

- the mol units get cancelled out, and you're left with 0.040 x 91.224 g

3. Multiply that out: 3.64896 grams of zirconium

Answer:

yes that is true........