Question

What is the molarity of a solution of KBr composed by adding 14.5 g KBr to a flask and adding water such that the total volume is 345 mL? First convert grams KBr to moles KBr, then apply the equation for molarity.

Name: what is the molarity of a solution of kbr composed by adding 145 g kbr to a flask and adding water such that the total volume is 345 ml first convert grams kbr to moles kbr then apply the eq 57756
Uploaded: 2023-09-10T22:09:54-08:00
Duration: 3 min 12 s
Channel: Joshua Klint
Description: what is the molarity of a solution of kbr composed by adding 145 g kbr to a flask and adding water such that the total volume is 345 ml first convert grams kbr to moles kbr then apply the eq 57756

          What is the molarity of a solution of KBr composed by adding
14.5 g KBr to a flask and adding water such that the total volume
is 345 mL? First convert grams KBr to moles KBr, then apply the
equation for molarity.

Added by Francisca S.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Joshua Klint

09/10/2023

Step 1

Convert grams KBr to moles KBr: We need the molar mass of KBr. The molar mass of K (potassium) is 39.10 g/mol, and the molar mass of Br (bromine) is 79.90 g/mol. So, the molar mass of KBr is 39.10 + 79.90 = 119.00 g/mol. Now, we can convert grams KBr to moles Show more…

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What is the molarity of a solution of KBr composed by adding 14.5 g KBr to a flask and adding water such that the total volume is 345 mL? First convert grams KBr to moles KBr, then apply the equation for molarity.