Question

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Answer 1

Answer: $H_2$ < $CO$ < $O_2$ < $CO_2$ < $CL_2$

Explanation:

According to avogadro's law, 1 mole of every substanceweighs equal to its molecular mass and contains avogadro's number $6.023\times 10^{23}$ of particles.

To calculate the moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}$

1. Mass of $H_2=moles\times {\text {Molar mass}}=0.50moles\times 2g/mol=1g$

2. Mass of $O_2=moles\times {\text {Molar mass}}=0.50moles\times 32g/mol=16g$

3. Mass of $Cl_2=moles\times {\text {Molar mass}}=0.50moles\times 71g/mol=35.5g$

4. Mass of $CO_2=moles\times {\text {Molar mass}}=0.50moles\times 44g/mol=22g$

5. Mass of $CO=moles\times {\text {Molar mass}}=0.50moles\times 28g/mol=14g$

Thus the flasks of gases in order of increasing grams of gas is:

$H_2$ < $CO$ < $O_2$ < $CO_2$ < $CL_2$