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densk [106]
3 years ago
6

Which scenario suggests that the results of an experiment are reliable?

Chemistry
2 answers:
antiseptic1488 [7]3 years ago
8 0
B) Repeating the experiment gives the same results should be it
BigorU [14]3 years ago
4 0
The answer is B.

Hope this helps.
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A student needs to prepare 100. mL of 0.612 M Cu(NO3)2 solution. What mass, in grams, of copper(II) nitrate should the student u
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Answer: 11.5 grams

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution

Molarity=\frac{n\times 1000}{V_s}

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n= moles of solute  

V_s = volume of solution in ml = 100 ml

Now put all the given values in the formula of molarity, we get

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Therefore, the mass of copper (II)nitrate required is 11.5 grams

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