houseofknowledge6

If O2 is collected over water at 40.0degC and a total pressure of 742mmHg , what volume of gas will be collected for the complete reaction of 25.19g of NiO?

V=____ L

Gaseous ethane (CH3CH3) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O). What is the theoretical yield of carbon dioxide formed from the reaction of 29.5g of ethane and 71.3g of oxygen gas? 

Round your answer to 3 significant figures.

Exercise 11.106---

Part B Consider the reaction: 2NiO(s)→2Ni(s)+O2(g) If O2 is collected over water at 40 ∘C and a total pressure of 747 mmHg , what volume of gas will be collected for the complete reaction of 25.51 g of NiO?

Exercise 11.105---- Part A

The reaction between zinc and hydrochloric acid is carried out as a source of hydrogen gas in the laboratory:
Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)

If 321 mL of hydrogen gas is collected over water at 25∘C at a total pressure of 746 mmHg , how many grams of Zn reacted?

Exercise 11.106--- Part B

Consider the reaction:
2NiO(s)→2Ni(s)+O2(g)

If O2 is collected over water at 40 ∘C and a total pressure of 747 mmHg , what volume of gas will be collected for the complete reaction of 25.51 g of NiO?

Exercise 11.107---- Part C

How many grams of hydrogen are collected in a reaction where 1.84 L of hydrogen gas is collected over water at a temperature of 40 ∘C and a total pressure of 747 torr ?

A common way to make hydrogen gas in the laboratory is to place a metal such as zinc in
hydrochloric acid. The hydrochloric acid reacts with the metal to produce hydrogen gas, which is then collected over water. Suppose a student carries out this reaction and collects a total of 154.4 mL of gas at a pressure of 742 mmHg and a temperature of 25 oC. What mass of hydrogen gas (in mg) does the student collect?