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Katarina [22]
4 years ago
8

Use the data to calculate the percentage remaining for samples Y and Z to the nearest tenth of a percent.

Biology
2 answers:
marusya05 [52]4 years ago
5 0

Answer:

Y= 98, 0% , Z = 94,7 %

Explanation:

We use simple 3 rules to find the percentage of purity, using mass data:

Sample Y =

85g----100%

83,30g----X = (83,30gx 100%)/ 85g= 98, 0%

Sample Z =

95g----100%

90g----X = (90gx 100%)/ 95g= 94, 7%

Hunter-Best [27]4 years ago
4 0

Answer:

98.0, 94.7

Explanation:

From the image, the percentage remaining (PR) can be mathematically computed as:

PR = final mass/initial mass x 100%

PR for sample Y = final mass of Y/initial mass Y x 100%

= 83.30/85.00 x 100% = 98.0% (to the nearest tenth of a percent)

PR for sample Z = final mass of Z/initial mass of Z x 100%

= 90.00/95.00 x 100% = 94.7% (to the nearest tenth of a percent)

<em>Hence, the percentage remaining of sample Y is 98.0 percent and that of sample Z is 94.7% </em>

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