Respuesta :

Space

Answer:

1.63 M

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

Chemistry

Unit 0

  • Reading a Periodic Table
  • Writing Compounds

Aqueous Solutions

  • Molarity = moles of solute / liters of solution

Explanation:

Step 1: Define

1.43 mol NaCl (sodium chloride)

0.875 L solution

Step 2: Find M

  1. Substitute [M]:                      x M = 1.43 mol NaCl / 0.875 L
  2. Divide:                                   x = 1.63429 M

Step 3: Check

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

1.63429 M ≈ 1.63 M