How many moles of HCI are neede to prepare 150 mL of a 1.2 M
solution?

0.18 moles HCl

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Unit 0

Aqueous Solutions

Step 1: Define

150 mL

1.2 M

x moles

Step 2: Identify Conversions

mL to L conversion

Step 3: Convert

= 0.15 L

Step 4: Solve for Moles

Step 5: Check

We are given 2 sig figs. Follow sig fig rules and round.

Since our final answer is in 2 sig figs, there is no need to round.

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