Question

If you obtained exactly 1.50 mL of nitric acid, which is 15.6 M, how many moles of nitric acid did you use in this reaction? Express your answer to 4 decimal places: 0.xxxx Do not include units

Answer 1

To find the number of moles of nitric acid, multiply the volume in liters (0.00150 L) by the molarity (15.6 M). The result is 0.0234 moles of nitric acid.

Step-by-step explanation:

To calculate the number of moles of nitric acid used in a reaction with a known volume and concentration, you can use the formula: moles = molarity × volume in liters. First, convert the volume from milliliters to liters. Since there are 1000 milliliters in a liter, 1.50 mL of nitric acid is equal to 0.00150 liters. Next, multiply the volume in liters by the molarity of the acid to find the number of moles.

Moles of HNO3 = molarity × volume in liters = 15.6 M × 0.00150 L

Moles of HNO3 = 0.0234 mol