Question

10ml×(1L/1000ml)×(6mol HCl/1L). How many moles of HCl is this equivalent to?

A) 0.006 mol
B) 0.060 mol
C) 0.600 mol
D) 6.000 mol

Answer 1

To find the moles of HCl in 10 ml of a 6M solution, convert milliliters to liters and multiply by the molarity. The calculation gives 0.060 moles of HCl, so the correct answer is B) 0.060 mol.

Step-by-step explanation:

To calculate how many moles of HCl are equivalent to 10 ml of a HCl solution where the concentration is 6 moles per liter, you use the conversion factors provided. First, convert the volume from milliliters to liters, using the conversion 1 L = 1000 ml. Then, use the molarity of the solution to find the number of moles in that volume.

Step-by-Step Calculation:

1. Convert milliliters to liters: 10 ml × (1 L / 1000 ml) = 0.01 L.
2. Multiply the volume in liters by the molarity to get moles: 0.01 L × (6 mol HCl / 1 L) = 0.06 mol HCl.

Therefore, the correct answer is B) 0.060 mol.