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krek1111 [17]
3 years ago
11

What is the amount of matter in an object. A mass B volume C Density

Chemistry
2 answers:
Sever21 [200]3 years ago
7 0
Mass mass mass mass mass mass
Jobisdone [24]3 years ago
3 0

Answer:

Option A

Explanation:

The answer is "mass" or option A. It's not option B because volume is the amount of space in a object which is not what the question is asking for. It's also not option C because density goes hand in hand with volume measuring how much space a object takes up, and also density is mass per volume. Leaving only option A, therefore it is your answer.

Hope this helps.

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How many moles of NaOH are present in 27.5 mL of 0.270 M NaOH?
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The solution for the question above is:

C = 0.270 
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<span>Use the molar formula which is: C = n/V </span>
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Acetanilide has a solubility of 1.00 g/185 ml in 25 oc water and 1.00 g/20 ml in 100 oc water. what is the minimum volume of wat
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In the crystallization process the solid compound is dissolved in the solvent at elevated temperature and the crystallize product obtained by slow cooling of the  solution. Here the solubility of acetanilide at 100°C is 1g per 20mL of water. Thus to dissolve 500mg of acetanilide at high temperature that is 100°C we need 10mL of water.

Now at 25°C after the re-crystallization there will be some amount of dissolve acetanilide. Which can be calculated as- 185mL of water is needed to dissolve 1g or 1000mg of acetanilide at 25°C. Thus in 10mL of water there will be \frac{10X1000}{185}=54.05gmg of acetanilide.    

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