Question

Convert into mole.a) 12 gram of O2 gas b) 20 gram of water c)22 gram of carbon dioxide​

Answer 1

Answer:

Explanation:

(a) Molecular weight of oxygen in grams = 32 g of oxygen= one mole of oxygen gas

Thus, 12 g of oxygen=  1/32 ×12=0.375 moles

b) Molecular weight of water (H2 O) in grams= 2+ 16=18 g=one mole of water

Thus, 20 g of water=  1/18×20=1.111 moles

(c) Molecular weight of carbon dioxide (CO2  ) in grams=12+2×16=44 g=one mole of carbon dioxide

Thus, 22 g of carbon dioxide =  1/44×22=0.5 moles

I hope it helps✌✌