Question

which of the following possess highest mass 1] 0.2 mol of CO2 gas 2]2.24 L SO2 gas at STP 3]3.01*10^23 molecules of water 4] 20g calcium

Answer 1

Answer:

(a)

mass = number of moles × molar mass

1 mole of CO2 = 44g

0.2 moles of CO2 = 44*0.2 = 8.8g

(b)

1 mole of gas occupies 22.4 L volume at ntp

22.4 L of SO2 gas = 64g

2.24 L of SO2 gas = (64*2.24)/22.4 = 6.4 g

1 mole of anything contains 6.023*1023 molecules/atoms/entities etc.

(c)6.023*1023 molecules of H2O = 18g

3.011*1023 molecules of H2O = (18*3.011*1023)/6.023*1023 =9g

Hence (4) is the correct option

hope this helps you... plzz mark as BRAINLIEST answer❤

Answer 2

Answer:

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Explanation:

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