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Alex Ar [27]
3 years ago
14

Please help me thank you! Stay safe

Chemistry
2 answers:
Nadusha1986 [10]3 years ago
5 0

Answer:

number 3

Explanation:

Tom [10]3 years ago
4 0

Explanation:

it's the third graph

values are put directly without scaling

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What mass of powdered drink mix is needed to make a 0.5 M solution of 100 mL?
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There is 17,114825 g of powdered drink mix needed

Explanation:

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As given, the concentration of the drink is 0.5 M, this means 0.5 mol / L

Since the volume is 100mL, we have to convert the concentration,

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e

<u>Step 2 </u>: calculate mass of the powdered drink

here we use the formula n (mole) = m(mass) / M (Molar mass)

⇒ since powdered drink mix is usually made of sucrose (C12H22O11) and has a molar mass of 342.2965 g/mol.

0.05 mol = mass / 342.2965 g/mol

To find the mass, we isolate it ⇒0.05 mol * 342.2965 g/mol = 17,114825g

There is 17,114825 g of powdered drink mix needed

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3 years ago
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