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ra1l [238]
3 years ago
14

A student estimated the volume of a liquid in a beaker as 200.0 mL. When she poured the liquid into a graduated cylinder she MEA

SURED the volume to be 198.2 mL. What is the percent error?
Chemistry
1 answer:
Taya2010 [7]3 years ago
6 0

Answer:

<h3>The answer is 0.91 %</h3>

Explanation:

The percentage error of a certain measurement can be found by using the formula

P(\%) =  \frac{error}{actual \:  \: number}  \times 100\% \\

From the question

actual volume = 198.2 mL

error = 200 - 198.2 = 1.8

So we have

P(\%) =  \frac{1.8}{198.2}  \times 100 \\  = 0.90817356205...

We have the final answer as

<h3>0.91 %</h3>

Hope this helps you

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Answer:

613 mg

Explanation:

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Here, I = 9.20 A

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Here, 2e, 2F

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$0.0208 \ F = \frac{0.0208}{2} = 0.0104 \ mol \ Ni$

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2 years ago
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irina1246 [14]

A. Breaking a Cl-Br bond

6 0
2 years ago
For an aqueous solution of sodium chloride (NaCl) .Determine the molarity of 3.45L of a solution that contains 145g of sodium
worty [1.4K]
Molar mass NaCl = 58.44 g/mol

number of moles:

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Therefore :

M = moles / volume in liters:

M = 2.4811 / 3.45

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hope this helps!
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Answer:

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Explanation:

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