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Fynjy0 [20]
2 years ago
9

Francine makes several measurements of the mass of a metal block. The data set is shown in the table below.

Chemistry
1 answer:
BARSIC [14]2 years ago
3 0

Answer:

Mean

Explanation:

The mean of a series of measurements is calculated when a<em>ll the measurements are added up and then divided by the number of measurements taken</em>, as follows:

  • Sum of Measurements = 20.73 + 20.76 + 20.68 + 20.75 = 82.92

As<u> there are 4 measurements</u>, the mean is:

  • Mean = 82.92 / 4 = 20.73
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You need to prepare 150 mL of 0.1 M solution of silver chloride. How much silver chloride is required?
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Answer:

amount of silver chloride required is 0.015 moles or 2.1504 g

Explanation:

0.1M AgCL means 0.1mol/dm³ or 0.1mol/L

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then x will be contained in 150mL of solution

cross multiply to find x

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                        =

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