Answers
The water is formed from oxygen gas and...hydrogen gas, I'm assuming? It would have been nice for the question to have been a bit more explicit (not blaming you, of course).
Assuming that's the case, our chemical reaction would be:
2H₂(g) + O₂(g) → 2H₂O(l).
We are told that 1 mol of a gas has a volume of 24.0 dm³ at RTP. We can use this relation to determine the number of moles of O₂ gas that reacts given its initial volume, 33.5 dm³.
33.5 dm³ O₂(g)/24.0 dm³/mol = 1.396 mol O₂(g).
Since we are not given any information about H₂(g), or any other reactant for that matter, I am assuming that the O₂(g) is the limiting reactant. According to the equation, the stoichiometric ratio between O₂ and H₂O is 1:2. That is, for every one mole of O₂ that is consumed, two moles of H₂O are formed (i.e., the number of moles of H₂O formed is double the number moles of O₂).
Since 1.396 moles of O₂ reacts, 2(1.396) = 2.792 moles of H₂O are produced. To convert moles of water to grams, we multiply the number of moles of H₂O by the molar mass of H₂O:
(2.792 moles H₂O)(18.015 g/mol) = 50.3 g H₂O.
So, approximately 50.3 grams of water are formed from 33.5 dm³ of oxygen gas at RTP.
Related Questions
A container has a volume of 5.85 L and a pressure of 4.25 atm. What will the volume be
If the containers pressure is changed to 2.75 atm?
Answers
Answer:
9.04 LExplanation:
The new volume can be found by using the formula for Boyle's law which is
[tex]P_1V_1 = P_2V_2[/tex]
Since we're finding the new volume
[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]
We have
[tex]V_2 = \frac{4.25 \times 5.85}{2.75} = \frac{24.8625}{2.75} \\ = 9.0409...[/tex]
We have the final answer as
9.04 LHope this helps you
Ultraviolet light from the Sun can
Answers
Answer:
Can cause sunburn, premature aging of the skin and damage molecules in skin cells
Explanation:
Answer:
pueden afectar directo al adn de las celulas de la piel y son causantes de las quemaduras del sol
Explanation:
Show work for all math problems. Make sure to have the correct unit and significant figures in your each answer.
Convert 2.35 atm to mmHg.
Answers
Correct sig figs: 1790 mmHg
List the methods of separation used in water purification...... ( HELP PLEASE )
Answers
Answer:
I can list four. These are the main ones.
Bolling
Filtration
Distillation.
Chlorination
Explanation:
Identify the type of reaction occurring based on the description
below:
"Sodium hydroxide reacts with iron (III) chloride."
What type of reaction is this?
a Double displacement
b
Decomposition
C Synthesis
d Combustion Reaction
Answers
Answer:double displacement
Explanation:I just did it
pls help !! - Using the graph below, what is the rule for a translation form point A to point D?
Answers
Answer:
Graph? Question is incomplete.
if the hydrogen ion concentration [H+] in a solution is 1.87 x 10^-11M what is the [OH-]
Answers
By using pH formula, the concentration of hydroxyl ion [OH-] will be 5.3 ×[tex]10^{-4}[/tex] M.
What is pH?
The pH scale is a measurement of hydrogen ion concentration that is used to determine the acidity as well as alkalinity of a solution.
Calculation of [OH-] by using formula of pH.
Given data:
[H+] = 1.87 x [tex]10^{-11} M[/tex]
[OH-] = ?
Calculation of [OH-] is shown below:
It can be calculated by using the formula:
pH = -log [H+]
Put the value of concentration of hydrogen ion [H+] in above formula.
pH = -log (1.87 x [tex]10^{-11} M[/tex])
pH = -log (1.87) -log ( [tex]10^{-11} M[/tex])
pH = -0.27 +11
pH = 10.73
Now, use the formula, pH +pOH = 14
pOH = 14 - pH
pOH = 14 - 10.73
pOH = 3.27
Now, use formula pOH = -log [OH-]
[OH-] = [tex]10^{-pOH}[/tex]
[OH-] = [tex]10^{-3.27}[/tex]
[OH-] = 5.3 ×[tex]10^{-4}[/tex] M
Therefore, the concentration of hydroxyl ion [OH-] will be 5.3 ×[tex]10^{-4}[/tex] M.
To know more pH
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11. A mixture of magnesium powder and lead (II) Oxide will react vigorously when heated
but no reaction occurs when a mixture of magnesium oxide and lead powder are heated,
a) Explain the observation.
b Which of the two substances, magnesium or lead(IT) Oxide is;
i) Oxidized in the reaction?
ii) Oxidizing agent?
C Which is the most reactive metal
Please help
Answers
Answer:
Explanation:
The reaction is violent but safe, provided the procedure is followed exactly. ... Chemicals. Magnesium powder (HIGHLY FLAMMABLE), 0.25 g (note 4); Copper(II) oxide powder ... top must NOT be hot when the magnesium powder/copper oxide mix is added. ... After one or two minutes (be patient) a vigorous reaction occurs.
please help
sorry if it’s a little hard to read
Answers
Explanation:
Potassium=19, metal
Nitrogen=7, nonmetal
Silver=47, metal
Iron=26, metal
Sodium=11, metal
Magnesium=12, metal
Oxygen=8, nonmetal
Copper=29, metal
Calcium=20, metal
Chlorine=17, nonmetal
Which unit is commonly used for measuring pressure?
O m3
O bar
O N/m3
O Celsius
Answers
Answer:
3
Explanation:
Answer:
bar
Explanation:
yes
Which property is NOT used to separate a mixture?
Answers
Answer:
Conductivity.
Explanation:
HELP ASAP! 20 POINTS
Answers
How long does it take the Earth to move from Point A to Point C?
Answers
Answer:
the answer should be six months
Explain Newton’s third law of motion.
Answers
Answer:
His third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. Notice that the forces are exerted on different objects.
Explanation:
Arteries
have very thin walls
o appear bluish in color
o carry blood away from the heart
connect capillaries and veins
Answers
Answer:
carry blood away from the heart
The answer is d but can anyone explain why and if not don't answer
Answers
Answer:
because the reaction can always be accelerated by heat
The reactant which is consumed completely in a reaction is called the excess reactant. TRUE or FALSE
Answers
Answer:
False
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The car is heading north covering a distance of 500 meters in 20 seconds. What is the car’s velocity?
Answers
Since it is traveling 500 meters in 20 seconds, you would divide the two.
500/20=25
Have a nice day!
Plz help if you can!
Name these Ionic Compounds: ( Al is Aluminum and Cl is chlorine)
1. AlI3
2. K3N
3. Cs2O
4. CaCl2
5. LiBr
Answers
Answer:
Aluminum Iodide
Potassium Nitride
Caesium Oxide
Lithium Bromide
Explanation:
8. Calculate the pH of a solution if the [OH-] concentration is 0.015 M.
A) 1.82
B) 8.82
C) 12.18
D) 4.32
Answers
Answer:
1.82
Explanation:
pH is given by the equation
The four structures that both prokaryotic and eukaryotic cells have are
Answers
Hello! Greetings from Turkey! :)
* Cell membrane
* Cytoplasm
* DNA and RNA
* Ribosome
GOOD LUCK!!
How many moles would there be in 500,000,000,000 atoms of silver? Show your calculation
and answer in unit
Answers
Answer:
Answer: 3.01 * 10^35
Explanation:
500,000,000,000 * 6.02 * 10^23
4. In the following reaction: 2NaN3 decomposes to form 2Na + 3N2. If 500 grams of NaN3 decomposes to form 320 grams of Na, how much Na is produced?
180 grams
320 grams
500 grams
Answers
mass of NaN₃ → moles of NaN₃ → moles of Na → mass of Na
500 g NaN₃ ×
1
mol NaN₃
65.01
g NaN₃
= 7.69 mol NaN₃
7.69 mol NaN₃ ×
2
mol Na
2
mol NaN₃
= 7.69 mol Na
7.69 mol Na ×
22.99
g Na
1
mol Na
= 176.8 g Na
Using Mass of N₂
You must make the following conversions:
mass of N₂ → moles of N₂ → moles of Na → mass of Na
323.20 g Na ×
2
mol N₂
28.01
g N₂
= 11.539 mol N₂
11.539 mol N₂ ×
2
mol Na
3
mol N₂
= 7.692 mol Na
7.692 mol Na ×
22.99
g Na
1
mol Na
= 176.85 g Na
1
The table gives the composition of three particles
particle
number of
protons
number of
electrons
number of
neutrons
А
15
16
B
15
16
с
15
17
(a) What is the evidence in the table for each of the following?
(i) Particle A is an atom.
(ii) A, B and C are all particles of the same element
Answers
Answer:
the answer is wurkey churkey since the birdy is really really cute
Explanation:
if the birdy was not squishy then it would have died already?!?!?
Which of the following changes will lead to an increase in the rate of dissolving.
a. increasing the surface area of the solute
b. stirring the solution
c. increasing the temperature of the solution
d. All of the above
Answers
5. The pictures below show four kinds of seeds. Which seed has a structure that
allows it to be carried away by wind?
A Bean seed
B Watermelon seed
C Dandelion seed
D Acorn
Answers
Answer:
Dandelion seed
Explanation:
(I learnt it in camp)
Answer:
C Dandelion Seed
Explanation:
Dandelion Seed are light enough to be carried by the wind.
Which of the following provides the best evidence that a chemical change is taking place? A. metal object becomes shorter when it is cooled. B. Steam rises from the surface of a liquid. C A liquid forms as a solid object melts. D. A flame burns on the surface of a solid.
Answers
How many liters of ammonia gas can be formed from 24.5 L of hydrogen gas at STP?
Answers
Answer: 16.3 L of ammonia gas can be formed from 24.5 L of hydrogen gas at STP
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
The balanced chemical equation is:
[tex]3H_2+N_2\rightarrow 2NH_3[/tex]
According to stoichiometry :
[tex]3\times 22.4=67.2L[/tex] of [tex]H_2[/tex] produce = [tex]2\times 22.4=44.8L[/tex] of [tex]NH_3[/tex] at STP
Thus 24.5 L of [tex]H_2[/tex] will produce= [tex]\frac{44.8}{67.2}\times 24.5=16.3L[/tex] of [tex]NH_3[/tex] at STP
Thus 16.3 L of ammonia gas can be formed from 24.5 L of hydrogen gas at STP
The student wants to test the conductivity of each solution. Prior to carrying out the investigation, the student needs to identify the variables being controlled and the variables being changed between the two solutions. Which identification of the variables is correct?
Options:
The volume of the solution and the concentration of the solution are being changed between the two solutions, but the number of solute particles is being held constant.
The number of solute particles and the concentration of the solution are being changed between the two solutions, but the volume is being held constant.
The number of solute particles is being changed between the two solutions, but the volume and concentration of the solution is being held constant.
The volume of the solution and the number of solute particles are being changed between the two solutions, but the concentration of the solution is being held constant.
Answers
Answer:b
Explanation: the particles will soon dissolve which means that the particles are changing but the volume is staying the same and the concentration is changing
The identification of the variables which is correct is that the number of solute particles is being changed between the two solutions, but the volume and concentration of the solution is being held constant.
What are variables?Variables are defined as any characteristics, number or quantity which can be measured . It can also be called as a data item . It is called as variable because they can vary and can have variety of values.
There are three types of variables 1) manipulated variable where in a condition is specified, 2) responding variable which is dependent on manipulated variable 3)controlled variable which do not change.
Example of manipulated variables are number of hours spent by a student studying , that of responding variable is result of a student and temperature is an example of controlled variable.
Learn more about variables,here:
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How does molecular shake affect polarity?
Answers
Answer:
I believe its A
Explanation:
A molecule that has a symmetrical shape will be a nonpolar molecule.