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Andreas93 [3]
3 years ago
9

HELP IM GIVING BRAINLY

Chemistry
1 answer:
Galina-37 [17]3 years ago
4 0

Answer:

b

c

250 mL

Explanation:

The second equation is: Molarity 1 x Volume 1 = Molarity 2 x Volume 2

Plug in, solving for Volume 2

Solve

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Answer:

five half lives

Explanation:

Half-life is the time required for a quantity to reduce to half of its initial value.

How many half lives it would take to reach 3.13% form 100% of it's initial concentration:

100% - 50% : First Half life

50% - 25%: Second Half life

25% - 12.5%: Third Half life

12.5% - 6.25%: Fourth Half life

6.25% - 3.125%: Fifth Half life

This means it would take five half lives to get to 3.125% (≈ 3.13%) of it's original concentration.

3 0
2 years ago
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