molarity (M) = mol / Liters
molarity (M) = ?
9.63 grams of HCl
1.5 liters of HCl
1. Convert grams to mol by using the formula :
mol = mass / Molar mass
a/ Molar mass of HCl:
H = 1 x 1.01 = 1.01 g/mol
Cl = 1 x 35.45 = 35.45 g/mol
Add them together:
1.01 g/mol of H + 35.45 g/mol of Cl = 36.46 g/mol of HCl
b/ Find the mol
mol = 9.63 g / 36.46 g/mol
mol = 0.264
=> 0.264 mol of HCl
2. Now, using the formula M = mol / liters
M = 0.264 mol of HCl / 1.5 L
M = 0.176 mol/L
Hope this help!
