Question

14. Identify the limiting reagent in the following reactions:
6.5 g of zinc added into an aqueous solution containing 12.0 g of sulphuric acid produces
2.24 L of hydrogen gas.
b.
A solution containing 7.4 g of Ca(OH), is treated with a sample of hard water
containing 15.0 g of Ca(HCO3)2
5.6 g of iron is heated in the presence of excess of oxygen.
Numerical Problems
15. An hourly energy requirement of an astronaut can be satisfied by the energy released
when 34 g of sucrose (
CH2,0) are burnt in his body. How many grams of oxygen
would he need to be carried in space capsule to meet his requirement for one day?
(Ans. 916.3 gl
16. A chemist wishes to prepare 6.022 x 1024 molecules of so, according to the reaction,
S + 0, → SO,
How many grams of sulphur and oxygen are needed for it?
(Ans. S = 320 g 0 - 320 gl​

Answer 1

Answer:

Why do you have to ask tonnes of questions at the same time,

No one will answer this.

Answer 2

Answer:

i am going to answer only 2 questions

Explanation: