Zinc reacts with hydrochloric acid to give hydrogen and zinc chloride.The volume of hydrogen gas produced at STP from the reaction of `11.5g` of zinc with excess `HCl` is _______L (Nearest integer)
(Given: Molar mass of `Zn` is `65.4 g mol^(-1)` and Molar volume of `H_(2)` at STP `=22.7L`)

Given the reaction : C(s)+H_2O(l)toCO(g)+H_2(g) Calculate the volume of the gases prodcued at STP from 48.0 g of carbon.

12 g of Mg (at. Mass 24) on reacting completely with acid gives hydrogen gas, the volume of which at STP would be

What volume of hydrogen at NTP will be liberated was is 3.25 g of zinc completely dissolve in dilute HCl? (At. mass of Zn=65)

Aluminium reacts with sulfuric acid to form aluminium sulfate and hydrogen. What is the volume of hydrogen gas in litres (L) produced at 300 K and 1.0 atm pressure, when 5.4 g of aluminimum and 50.0 mL 5.0 M sulfuric acid are combined for the reaction? (Use molar mass of aluminium as "27.0 g mol"^(-1), R="0.082 atm L mol"^(-1)K^(-1) )

Zinc reacts with dilute hydrochloric acid to give hydrogen at 17^(@)C . The enthalpy of the reaction is -12.55kJ mol^(-1) of zinc and entropy change equals 5.0 J k^(-1)" "mol^(-1) for the reaction. Calculate the free energy change and predict whether the reaction is spontaneous or not.