If Avogadro number NA, is charged from 6.022 ˣ 10²³ mol⁻¹ to 6.022 ˣ 10²⁰ mol⁻¹, this would change
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(a) the mass of one mole of carbon (b) the ratio of chemical […]
A mixture of gases contains H₂ and O₂ gases in the ratio of 1:4(w/w).What is the molar ratio of the two gases in the mixture
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(a) 04:01:00 (b) 16:01:00 (c) 02:01:00 (d) […]
When 22.4 litres of H₂(g) is mixed with 11.2 litres of Cl₂(g) each at S.T.P, the moles of HCl(g) formed is equal to
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(a) 1 mol of HCl(g) (b) 2 mol of HCl(g) […]
Equal masses of H₂, O₂ and methane have been taken in a container of volume V at temperature 27⁰C in identical conditions.The ratio of the volumes of gases H₂:O₂: methane would be
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1.0 g of magnesium is burnt with 0.56 g O₂ in a closed vessel.Which reactant is left in excess and how much? (At.wt.Mg=24, O=16)
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(a) Mg,0.16g (b) O₂,0.16g (c) Mg,0.44g (d) O₂,0.28g
Correct […]
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