Question

Calculate the mass of 112ml hydrogen at stp

Answer 1

hey here is your answer

112 cm³ = 112 ml

= 0.112 l

= 0.112/22.4 mol

= 5*10^-3 mol = 5*10^-3*2.016 g

= 0.01 g

hope it will help you..

Answer 2

No. Of moles= 112/22400{Since, no. Of moles=volume(in mL)/22400

Since, no. Of moles= mass of element/molecular mass

Therefore,mass of element=112×2/22400=0.01g

Hence,mass of element=0.01grams