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podryga [215]
2 years ago
9

An experiment in chm 2045 requires students to prepare a 1.0 M aqueous solution of potassium phosphate.Jennifer fills a 1.0 lite

r volumetric flask to the calibration line with water. She then weighs out 212.3 g of potassium phosphate and adds it to the volumetric flask.Joe weighs out 212.3 g of potassium phosphate and adds it to a 1.0 liter volumetric flask. He then fills the volumetric flask to the calibration line with water.Which student has correctly prepared a 1.0 M aqueous solution of potassium phosphate?
Chemistry
1 answer:
horrorfan [7]2 years ago
6 0

Answer:

Joe correctly prepared the solution.

Explanation:

When comparing both methods, we see that the mass of potassium phosphate weighed is the same for Jennifer and Joe, so that's not a factor.

The difference lies in the fact that Jennifer added the solid to 1.0 liters of water, so<u> the final volume is higher than 1.0 L</u>, that's why t<u>he concentration will be lower than 1.0 M</u>.

The final volume of Joe's solution is 1.0 L, that's why he prepared the solution correctly.

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