Answer:
42.64 M
Explanation:
Step 1: Given data
- Moles of HCl (solute): 8.1 mol
- Volume of the solution: 189.98 mL
Step 2: Convert the volume of the solution to liters
We will use the relationship 1 L = 1,000 mL.

Step 3: Calculate the molarity of the solution
The molarity is equal to the moles of solute divided by the liters of solution.

Answer:
Explanation:
Radioactive substances are atoms that decay naturally. They can give off alpha particles, beta particles and gamma radiation.
M = 22.8 g
V = 14.7 mL
ρ - ?
ρ = m/V
ρ = 22.8/14.7 = 1.55 g/mL