Question

Need some questions based on stoichiometry

Answer 1

Problem 1

If 138.6 g of KClO_3 is heated and decomposes completely, how many grams of oxygen gas would be produced?


Problem 2

How many grams of iodine must react to give 4.63 grams of ferric iodide?

Problem 3

How many grams of H20 will be produced when you burn 25 grams of methane?

SHORT QUESTIONS


1-5. For the given unbalanced reaction CaSO4 + NaCl → CaCl2 + Na2SO4

1. How many CaSO4 in kg is required for producing 1 mole of Na2SO4? Assume NaCl in excess.

a) 136 kg

b) 156 kg

c) 176 kg

d) 196 kg

2. How many kg of Na2SO4 will be produced using 80 kg of NaCl? Assume CaSO4 in excess.

a) 122 kg

b) 142 kg

c) 162 kg

d) 182 kg

3. How many moles of CaCl2 will be produced using 300 kg of CaSO4? Assume NaCl in excess.

a) 2.2 kg

b) 4.2 kg

c) 6.2 kg

d) 8.2 kg

4. How many pounds of NaCl required producing 2.5 pound moles of Na2SO4? Assume CaSO4 in excess.

a) 200

b) 400

c) 90800

d) 181600

5. 1/A pound moles of CaSO4 are used to produce 222 kg of CaCl2. What is the value of A? Assume NaCl in excess.

a) 127

b) 227

c) 327

d) 427

6. When 32gms of CH4 is burned with excess oxygen, how many grams of CO2 are produced?

a) 44

b) 88

c) 132

d) 176

7. How many grams of C2H6 are required to produce 88 grams of CO2 when it is burned in the excess of oxygen?

a) 15

b) 30

c) 45

d) 60

8-10. Nitric acid formation reaction is given as below

3NO2 + H2O → 2HNO3 + NO

8. The given reaction is

a) Balanced

b) Unbalanced

c) Partially balanced

d) None of the mentioned

9. For producing 4 gram moles of HNO3, how many grams of NO2 are required?

a) 274

b) 275

c) 276

d) 277

10. If the NO2 in the feed is 400 gms, How many moles HNO3 will be in the product?

a) 2.797

b) 3.797

c) 4.797

d) 5.797