Answer to Question #155504 in General Chemistry for Kimberli

Question #155504

1) Given the reaction: 2CO + O2 → 2CO2

What is the minimum number of moles of O2 required to produce one mole of CO2?

2) In the reaction Zn + 2HCl → ZnCl2 + H2,

How many moles of hydrogen will be formed when 4 moles of HCl are consumed?

3) Given the reaction: 4Al + 3O2 → 2Al2O3

How many moles of Al2O3 will be formed when 27 grams of Al reacts completely with O2?

4) In the reaction N2 + 3H2 → 2NH3,

How many grams of hydrogen are needed to produce exactly 1 mole of ammonia?

5) Given the balanced equation: NaOH + HCl → NaCl + H2O

What is the total number of grams of H2O produced when 116 grams of the product, NaCl, is formed

6) Given the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)

At constant pressure, how many liters of O2(g) would be required to produce 40. liters of NO(g)?

Expert's answer

1) 1/2 moles.

2) 4/2 = 2 moles.

3) 1 x 2/4= 1/2 moles.

4) 6/2 = 3 g.

5) 116x18/58.5= 36 g.

6) 50 L.

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