How many moles of Na3N are there in 56.1 grams of Na3N? a. 4660 moles

b. 2.46x10^-24 moles

c. 4.07x10^23 moles

d. 0.676 moles

D. 0.676 moles

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[Given] 56.1 g Na₃N

[Solve] moles Na₃N

Step 2: Identify Conversions

[PT] Molar Mass of Na - 22.99 g/mol

[PT] Molar Mass of N - 14.01 g/mol

Molar Mass of Na₃N - 3(22.99) + 14.01 = 82.98 g/mol

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

0.676067 mol Na₃N ≈ 0.676 mol Na₃N

answer: i would say b.

explanation: