Question

how many moles are there in (a)44.8dm^3 of gas at stp
(b) 750cm^3 of gas at stp​

Answer 1

Your answers:

(a) 1 dm³ = 1 L

one mole of any atoms or molecules occupies 22.4 L

So, no. of moles in 44.8 L =  $\frac{44.8}{22.4}$ = 2 moles

(b) 1 cm³ = 1 ml and, 1000 ml = 1 L

750 ml = 0.75 L

No. of moles of gas in 0.75 L = $\frac{0.75}{22.4}$ = 0.0355 moles (approx)

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Answer 2

Answer:

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