Answers:
- <em>Step 1: Convert the mass of A to moles. moles of A:</em> <u>0.993 mol </u>
- <em>Step 2: Convert the number of moles of A to the number of moles of B. moles of B: </em><u>1.49 mol </u>
- <em>Step 3: Convert the number of moles of B to molecules of B. molecules of B:</em> <u>8.97 × 10</u><u>²³ </u><u>molecules</u>
Explanation:
<u>1) Chemical equation (given):</u>
<u>2) Follow the given steps:</u>
Step 1: Convert the mass of A to moles.
moles of A:
- n = mass in grams / molar mass
- n = 27.6 g / 27.8 g/mol = 0.993 mol of A
Step 2: Convert the number of moles of A to the number of moles of B.
2 mol A : 3 mol B
2 mol A / 3 mol B = 0.993 mol A / x
⇒ x = 0.993 mol A × 3 mol B / 2 mol A = 1.49 mol of B
Step 3: Convert the number of moles of B to molecules of B.
- Avogadro's number: 6.022 × 10²³ molecules / mol
- 1.49 mol × 6.022 × 10²³ molecules / mol = 8.97 × 10²³ molecules of B.
B is the answer
<span>least 20 characters </span>
Answer: So you are matter, the apple, water, a computer etc.
Explanation: matter is anything that takes up space