Volume of hydrogen gas generated when 3mL of 1M sodium borohydride reacts with concentrated hcl?

I need to calculate the volume of hydrogen gas penerated when 3 mL of a 1M sodium borohydride reacts with conc. HCL. and then calculate the volume of hydrogen that can be liberated by reacting 1 g of zinc with acid. and write a balanced equation for the reaction of sodium borohydride with platinum chloride.