How many grams of barium hydride must be treated with water to obtain 4.36L of hydrogen at `20^(@)C` and 0.975 atm pressure (Ba=137)?

How many gram of oxygen is required to completely react with 0.200g of hydrogen to yield water .

How many moles of calcium fluoride , CaF_(2) , must be dissolved in 2.0 L of water at 25^(@) C to form a saturated solution?

One gram of an alloy of Mg and Al, when treated with excess dilute hydrochloric acid gave 1.2L hydrogen at O ""^(@)C and 0.92atm. Calculate the weight percentage of Mg in the alloy

How many moles of helium gas occupy 22.4L at O^@C and 1 atm pressure ?

How may moles of H_(2)O_(2) must be present in 2L of its solution, such that 100 ml of the solution can liberate 3.2 grams of oxygen at 273^(@)C and 0.5 atm pressure?

How may moles of H_(2)O_(2) must be present in 2L of its solution, such that 100 ml of the solution can liberate 3.2 grams of oxygen at 273^(@)C and 0.5 atm pressure?

How many moles of Helium gas occupy 22.4 L at 0^(@)C at 1 atm pressure?

How many moles of Helium gas occupy 22.4L at 0C and 1atm pressure