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Nastasia [14]
2 years ago
7

What is use in measuring

Chemistry
2 answers:
Taya2010 [7]2 years ago
7 0

Answer:

Explanation:

Strictly speaking, the ruler is the instrument used to rule straight lines and the calibrated instrument used for determining length is called a measure, however common usage calls both instruments rulers and the special name straightedge is used for an unmarked rule.

Nutka1998 [239]2 years ago
6 0

Answer:

a ruler or measuring cups are ways of measuring

Explanation:

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3 years ago
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Calculate the mass, in grams, of cucl2 (mw = 134.452 g/mol) required to prepare 250.0 ml of a 6.11 % w/v cu2 (mw = 63.546 g/mol)
Sever21 [200]

6.11% w/v of Cu2+ implies that 6.11 g of Cu2+ is present in 100 ml of the solution

therefore,  250 ml of the solution would have: 250 ml * 6.11 g/100 ml = 15.275 g

# moles of Cu2+ = 15.275 g/63.546 g mole-1 = 0.2404 moles

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3 years ago
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alkali metals will

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3 years ago
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Anastasy [175]

Answer:

Answer choice B. 2

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