Question

How many molecules of AsCl3 would be in 1mL of solution C from the previous question?

a) 3.01 × 10²⁰ molecules
b) 2.50 × 10²² molecules
c) 6.02 × 10²² molecules
d) 1.80 × 10²⁴ molecules

Answer 1

To find the number of molecules of AsCl3 in 1 mL of solution C, use the given conversion factors. The answer is option b) 2.50 × 10^22 molecules.

Step-by-step explanation:

To find the number of molecules of AsCl3 in 1 mL of solution C, we need to use the given conversion factors. From the previous question, we know that 1 mole of Cl2 is equal to 6.02 × 10^23 molecules of Cl2. Since AsCl3 has 3 molecules of Cl2, we can calculate:

1 mL solution C * (6.02 × 10^23 molecules Cl2 / 1 mole Cl2) * (1 mole AsCl3 / 3 moles Cl2) = 2.01 × 10^23 molecules AsCl3

Therefore, the correct answer is option b) 2.50 × 10^22 molecules.