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Kamila [148]
3 years ago
12

You are conducting a plant growth experiment and need to generate a solution with growth factor, auxin or indole-3-acetic acid.

You need 100ml of 400mM indole-3-acetic acid for this experiment. How much indol-3-acetic acid (solid; MW=175.2 g/mol) should you add to generate your solution?
Chemistry
1 answer:
Yuki888 [10]3 years ago
5 0

Answer:

7,01 g of indole-3-acetic acid

Explanation:

The milimolar concentration (mM) is defined as the ratio of milimoles per Liter of solution. 400mM means 400mmoles / L that is the same of <em>0,4mol / L</em>

100mL are <em>0,1L</em>. Using these values:

0,1L × (0,4mol / L ) = 0,04moles of indole-3-acetic acid.

As the MW of the molecule is 175,2 g/mol:

0,04mol × (175,2g / mol) = <em>7,01 g of indole-3-acetic acid</em>

<em></em>

Thus, <em>you need 7,01 g of indole-3-acetic acid to generate your solution</em>.

I hope it helps!

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