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vladimir2022 [97]
2 years ago
12

Which of the following is a unit of mass in the metric system? (4 points)

Chemistry
2 answers:
Ronch [10]2 years ago
6 0
The correct answer is gram
erma4kov [3.2K]2 years ago
5 0
Mass is used to measure the weight of an object. For example, you are measuring the mass of your body when you step on to a scale. In the metric system of measurement, the most common units of mass are the gram
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3 years ago
Covert 12.64 g NaOH to moles
mezya [45]
To calculate moles, use the formula Mol = Mass/ Mr.... Mr of NaOH is 23+ 16 + 1 = 40.... Mol = 12.64/40 = 0.316
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3 years ago
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In cathode-ray tubes, the cathode ray is emitted from the negative electrode, which is called the ________________. 2. the small
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3 years ago
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AveGali [126]

Answer:

The number of moles is 0.15 moles

Explanation:

Given data

The volume of the solution is 25.0 mL = 25 *10^-3 L

The molarity of the solution is 6.0 M

This means the number of moles in this solution is: 6.0 M * 25 *10^-3 L = 0.15 moles

This solution will be diluted, by increasing its volume to 100 mL = 100*10^-3 L

The new solution has 0.15 moles in 100 mL

The Molarity of this solution will change, but the number of moles will not change.

The number of moles is still 0.15 moles

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3 years ago
Can we call ionic compounds, covalent compounds? if yes then why?
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