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poizon [28]
2 years ago
9

Carla has 45$. Pineapples cost $5 each

Chemistry
2 answers:
ollegr [7]2 years ago
8 0
She can buy 9 pineapples. I don't know why anyone would need that many pineapples
djverab [1.8K]2 years ago
5 0
Carla will be able to buy 9 pineapples
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Answer:

In order to prepare 10 mL, 5 μM; <em> 2 mL of the 25 μM stock solution will be taken and diluted with water up to 10 mL mark.</em>

In order to prepare 10 mL, 10 μM; <em>4 mL of the 25 μM stock solution will be taken and diluted up to 10 mL mark.</em>

In order to prepare 10 mL, 15 μM; <em>6 mL of the 25 μM stock solution will be taken and diluted up to 10 mL mark.</em>

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Explanation:

Using the dilution equation:

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Final molarity = 5 μM, final volume = 10 mL, initial molarity = 25 μM, initial volume = ?

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<em>2 mL of the 25 μM stock solution will be taken and diluted up to 10 mL mark.</em>

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In order to prepare 10 mL, 10 μM from 25 μM stock,

25 x initial volume = 10 x 10

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<em>4 mL of the 25 μM stock solution will be taken and diluted up to 10 mL mark.</em>

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25 x initial volume = 15 x 10

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<em>6 mL of the 25 μM stock solution will be taken and diluted up to 10 mL mark.</em>

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<em>8 mL of the 25 μM stock solution will be taken and diluted up to 10 mL mark.</em>

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