a-calculate number of moles in
i) 2.2g of CO2 [C=12u,O=16u]
ii) 25 g of CaCO3 [Ca=40u,]
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Answer:
i) 0.05
ii) 0.25
Explanation:
i) given mass = 2.2g
molar mass = 44g
No of moles = given mass/molar mass
= 2.2/44
No of moles = 0.05
ii) given mass = 25 g
molar mass = 100g
No of moles = given mass/molar mass
= 25/100
No of moles = 0.25 moles
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