divide the mass of the zinc by its molar mass (65.4 g) to find the number of moles
each mole of zinc will produce a mole of hydrogen gas (diatomic)
multiply the moles by the molar mass of H₂ (2.02 g)
3.5g of zinc react with excess dilute hydrochloric acid to produce hydrogen gas at STP,calculate mas of hydrogen gas produced
1 answer
1 answer