Problem: We have prepared acetylene, C2H2 (g), in class by the reaction of calcium carbide with water:  CaC2(s) + 2 H2O(l)  →  Ca(OH)2 (s) + C2H2(g) Calculate the volume of C2H2 that is collected over water at 28.0°C by the reaction of 1.60 g CaC 2 (MM = 64.10g/mol) if the total pressure was 748.0 mmHg. The vapor pressure of water at 28.0°C is 28.3 mmHg.  a) 0.651 L b) 0.424 L c) 0.384 L d) 4.57 L e) 8.03 L 

FREE Expert Solution
Problem Details

We have prepared acetylene, C2H2 (g), in class by the reaction of calcium carbide with water: 

CaC2(s) + 2 H2O(l)  →  Ca(OH)2 (s) + C2H2(g)

Calculate the volume of C2H2 that is collected over water at 28.0°C by the reaction of 1.60 g CaC 2 (MM = 64.10g/mol) if the total pressure was 748.0 mmHg. The vapor pressure of water at 28.0°C is 28.3 mmHg. 

a) 0.651 L

b) 0.424 L

c) 0.384 L

d) 4.57 L

e) 8.03 L 

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Collecting Gas Over Water concept. If you need more Collecting Gas Over Water practice, you can also practice Collecting Gas Over Water practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofWe have prepared acetylene, C2H2 (g), in class by the reacti...as high difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 7 minutes and 18 seconds to solve this problem. You can follow their steps in the video explanation above.