What is the molarity of 10g of H2SO4 in 100ml of water?
mols H2SO4 = grams/molar mas = ?
Then M = mols/L
yeah
To find the molarity of a solution, you need to know the amount of solute (in moles) and the volume of the solution (in liters).
First, we need to find the moles of H2SO4. The molar mass of H2SO4 is 98.09 g/mol, so to convert grams to moles, we divide the mass by the molar mass:
moles of H2SO4 = mass of H2SO4 / molar mass of H2SO4
= 10 g / 98.09 g/mol
Next, we need to convert the volume of the solution from milliliters to liters. We know that 1 liter is equal to 1000 milliliters, so:
volume of solution = 100 ml / 1000 ml/L
= 0.1 L
Finally, we can calculate the molarity (M) using the formula:
Molarity (M) = moles of solute / volume of solution in liters
Substituting in the values we found:
Molarity (M) = (10 g / 98.09 g/mol) / 0.1 L
Calculating this expression will give us the molarity of the H2SO4 solution in units of moles per liter (mol/L), which is the definition of molarity.