A solution is preapred by dissolving 17.75 g sulfuric acid h2so4 in enough water make 100 ml of solution. what is the molarity

Molarity = moles / Liters

100mL = 0.100 liters

you need to change the grams to moles using the molar mass.

Molar mass = 2 (1.01) + 32.0 + 4 (16.0) = 98.02 grams/mole

17.75 grams (1 mole / 98.02 grams) = 0.181 moles

molarity = 0.181 moles / 0.100 Liter = 1.81 M