Molar Mass of Elements: Get here the concept of molar mass and the key differences between molar mass and percent composition, ... Mass of hydrogen in 1 mole of H₂O = 2 g; ...

Unit of Molar Mass The unit of molar mass is grams per mole (g/mol). This unit signifies the mass of one mole of a substance, which contains 6.022×10 23 particles (Avogadro's number).

For NaCl, the molar mass is 58.44 g/mol Now we can use the rearranged equation Mass (g) = No. Moles (mol) x Molar Mass (g/mol) = 1 x 58.44 = 58.44 g So, to make 2 liters of a 0.5 M solution of NaCl, ...

When 400 cm 3 of nitrogen reacts with excess hydrogen, calculate the volume of ammonia that will be produced. ... The molar ratio of nitrogen to ammonia from the balanced equation is 1:2.