Question

1. You need to prepare 200 mL of a 0.5 M NaCl solution. How much NaCl is needed? 2. You need to prepare 100 mL of a 10% NaCl solution. How much NaCl is needed? 3. You need to prepare 50 mL of a NaCl solution at a concentration of 0.5 g/mL. How much NaCl is needed?

Name: 1 you need to prepare 200 ml of a 05 m nacl solution how much nacl is needed2 you need to prepare 100 ml of a 10 nacl solution how much nacl is needed3 you need to prepare 50 ml of a nacl so 56652
Uploaded: 2022-01-17T06:26:48-08:00
Duration: 2 min 25 s
Channel: Jiva Y
Description: 1 you need to prepare 200 ml of a 05 m nacl solution how much nacl is needed2 you need to prepare 100 ml of a 10 nacl solution how much nacl is needed3 you need to prepare 50 ml of a nacl so 56652

          1. You need to prepare 200 mL of a 0.5 M NaCl solution. How much NaCl is needed?
   2. You need to prepare 100 mL of a 10% NaCl solution. How much NaCl is needed?
   3. You need to prepare 50 mL of a NaCl solution at a concentration of 0.5 g/mL. How much NaCl is needed?

Added by Brittany M.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Jiva Y

01/17/2022

Step 1

5 M NaCl solution. Step 2: Convert 200 mL to liters: 200 mL = 0.2 L Step 3: Calculate the moles of NaCl needed: 0.5 M * 0.2 L = 0.1 moles Step 4: Calculate the mass of NaCl needed: 0.1 moles * 58.5 g/mol = 5.85 g Step 1: Calculate the amount of NaCl needed to Show more…

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1. You need to prepare 200 mL of a 0.5 M NaCl solution. How much NaCl is needed? 2. You need to prepare 100 mL of a 10% NaCl solution. How much NaCl is needed? 3. You need to prepare 50 mL of a NaCl solution at a concentration of 0.5 g/mL. How much NaCl is needed?