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Tems11 [23]
3 years ago
11

11 A student combined 1.2 g of H2 gas and 5.4 g of He gas in a 2.5 L closed container. What was the pressure exerted by the H2 g

as if the mixture was at 22°C? (R = 0.08206 L · atm/mol · K)
36 atm


0.43 atm


12 atm


5.8 atm
Chemistry
2 answers:
blagie [28]3 years ago
7 0
The correct answer is 5.8 atm.
AveGali [126]3 years ago
3 0

Answer:

5.8 atm is correct, just did it

Explanation:

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Classify the following materials as solid, liquid, or gas at room temperature: milk, helium, granite, oxygen, steel, and gasolin
Sati [7]
Im not sure but milk is liquid, helium is gas, granite is solid, oxygen is gas, steel is solid, and gasiloine is liquid.
3 0
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13. Which statement about trace elements in our atmosphere is false?
tatiyna

Answer: sorry I’m not sure

Odjri:

6 0
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During combustion, methane yields carbon dioxide and water. The unbalanced equation for this reaction is:CH4(g)+O2(g) → CO2(g)+
almond37 [142]

Answer:

CH₄(g)  +  2O₂(g) → CO₂(g)  +  2H₂O(l)

Mole ratios for the balanced equation be:

1:2, 2:1, 1:1, 1:2, 2:2

Explanation:

CH4(g)+O2(g) → CO2(g)+ H2O(l)

To balance a chemical equation, you must have the same mole of each element in both sides of the reaction (reactant side and product side)

CH₄(g)  +  2O₂(g) → CO₂(g)  +  2H₂O(l)

2 C

8 H

8 O

In  both side.

It takes 1 mole of methane to react with 2 mole of oxygen in order to produce 1 mol of dioxide and 2 mole of water.

Mole ratios for the balanced equation be:

Mole ratios for the balanced equation be:

1:2, 2:1, 1:1, 1:2, 2:2  - We should compare each compound

1 mol methane → 2 mole of oxygen

2 mole of oxygen → 1 mol of methane

2 mole of oxygen → 1 mol of dioxide

1 mole of dioxide → 1 mol of Methane

2 mole of water → 2 mole of oxygen (the same as opposite)

1 mol methane →  2 mole of water

2 mol of water → 1 mol of methane

4 0
3 years ago
Molarity formula what is the molarity of a solution in which 3 moles of nacl is dissolved in 1.5 kg of water
Igoryamba
Molarity is..
1.5 kg H₂O = 1.5L H₂O
So...
\frac{moles}{volume} = molarity
\frac{3.0 mol}{1.5L} = molarity
2M = molarity
7 0
3 years ago
If a shell can hold a maximum of 32 electrons, what is the value of n
just olya [345]
I think the answe would be 16n

5 0
3 years ago
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