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wel
2 years ago
11

2. You have a rock with a volume of 15cm3 and a mass of 45 g. What is its density?

Chemistry
1 answer:
babymother [125]2 years ago
3 0

Answer:

3 g/cm³

Explanation:

Density= Mass divided by Volume

45÷15= 3

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How many grams of H20 will be produced by 18g H2
AURORKA [14]

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160.86 g to the nearest hundredth.

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8 0
3 years ago
Using the 5M NaCI and 10% glucose stock solutions you generated, how would you prepare 100 ml of a solution that is both 150mM N
fredd [130]

Answer:

Take 3 mL of the 5 M NaCl solution, 10 mL of the 10% glucose solution, and add water for a final volume of 100 mL.

Explanation:

  • In order to calculate the required volume of the 5 M NaCl solution, we calculated the moles contained in a 100 mL solution that has a concentration of 150 mM:

0.1 L * 0.150 M = 0.015 moles of NaCl

With those moles we can calculated the required volume, using the concentration of the stock solution:

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So in order to prepare the solution, you would need to take 3 mL of the 5 M NaCl solution, 10 mL of the 10% glucose solution, and add water for a final volume of 100 mL.

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