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MakcuM [25]
3 years ago
15

Density can be calculated by dividing an object's mass by its volume. If the mass of an object is 10 grams and its volume is 2 m

illiliters, what is its density?
Chemistry
1 answer:
Luden [163]3 years ago
6 0

Explanation:

  1. mass =10g. volume=2ml. density=mass/volume = 10/2=5kg/m^3
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If E=mc^2,solve for both m and c. Also, if m=80 and c=0.40 what is the value of E?
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<u><em>Answer:</em></u>

m = \frac{E}{c^2}

c = \sqrt{\frac{E}{m} }

E = 12.8 J

<u><em>Explanation:</em></u>

<u>Part 1: Solving for m</u>

<u>We are given that:</u>

E = mc²

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This means that we will simply divide both sides by c²

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<u>Part 2: Solving for c</u>

<u>We are given that:</u>

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<u>Part 3: Solving for E</u>

<u>We are given that:</u>

m = 80 and c = 0.4

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E = (80) × (0.4)²

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Hope this helps :)

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If the hydrogen ion concentration is 10-7M, what is the pH of the solution?<br><br> Show all work.
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