What volume of `HCI` solution of density `1.2g/cm^3` and containing `36.5%` by mass `HCI`, must be allowed to react wtih zinc `(Zn)` in order to liberate `4.0 g` of hydrogen ?

Calculate the number of millilitre of NH_3 (aq) solution (d=0.986 g/mL) contain 2.5% by mass NH_3 , which will be required to precipitate iron as Fe(OH)_3 in a 0.8g sample that contains 50% Fe_2O_3 .

A monometer contains a liquid of density 5.44g//cm^(3) is attached to a flask containing gas A' as follows If the same liquid is used in barometer to measure the atmospheric pressure, then what will be the length of the liquid column, which exerts pressure equal to 1 atm ? (density of Hg = 13.6 g//cm^(3) )

A monometer contains a liquid of density 5.44g//cm^(3) is attached to a flask containing gas 'A' as follows If the same liquid is used in barometer to measure the atmospheric pressure, then what will be the lengh of the liquid columnm which exerts pressure equal to 1 atm ? (density of Hg=13.6g//cm^(3) )

Calculate the mass of anhyrous HCI in 10mL of concentrated HCI (density =1.2 g/mL ) solution having 37% HCI by mass is :

What volume of 10%(w/v) solution of Na_2CO_3 will be required to neutralise 100 mL of HCl solution containing 3.65 g of HCl?

What volume of a liquid (in L) will contain 10 mole ? If molar mass of liquid is 280 and its density is 1.4 g/mL.

Hydrogen and oxygen combine in the ratio of 1 :8 by mass to from water. What mass of oxygen gas would be required to react completely with 3g of hydrogen?

29.2% stock solution has a density of 1.25gmL^-1 . The molecular weight of HCl is 36.5 gmol^-1 . The volume of stock solution required to prepare 200 mL of 0.4 HCl is