17. A certain amount of a metal whose equivalent massis 28 displaces 0

1.	17. A certain amount of a metal whose equivalent massis 28 displaces 07 L of H2 at S.T.P from an acidhence mass of the element is(1) 1.75 g(3) 3.50 g(2) 0.875 g(4) 7.00 g
Answer» 1 mole of Hydrogen at STP occupies 22.4 litres volume.Number of moles of 0.7 litres of Hydrogen at STP is 0.7/22.4 = 0.0313 moles Weight of element (x) = Moles of Hydrogen times equivalent weight of metal times mass of Hydrogenx = 0.0313282x = 1.7528 grams

17. A certain amount of a metal whose equivalent massis 28 displaces 07 L of H2 at S.T.P from an acidhence mass of the element is(1) 1.75 g(3) 3.50 g(2) 0.875 g(4) 7.00 g

Answer»

1 mole of Hydrogen at STP occupies 22.4 litres volume.Number of moles of 0.7 litres of Hydrogen at STP is 0.7/22.4 = 0.0313 moles

Weight of element (x) = Moles of Hydrogen times equivalent weight of metal times mass of Hydrogenx = 0.0313*28*2x = 1.7528 grams