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jok3333 [9.3K]
3 years ago
10

Mass is measured against a standard using a

Chemistry
2 answers:
Sholpan [36]3 years ago
6 0
The answer is c Balance hope it helps 
Tamiku [17]3 years ago
3 0
The answer is a balance
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Fe2O3

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Using the appropriate conversion factors in #2, convert 248 eggs into dozen of eggs
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Answer:

20.67 dozen of eggs.

Explanation:

One dozen egg = 12 eggs

For 248 eggs.

we will divide the 248 by 12.

248/12

20.7

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It can be confirm by multiplying the 20.7 with 12.

20.67 ×12

248.0

So, 20.67 is correct answer.

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What is the molarity of a 50.0 mL solution that contains 0.0350 mol of sodium sulfate, Na2SO4?
Ymorist [56]

Answer:

The molarity of a 50.0 mL solution that contains 0.0350 mol of sodium sulfate 0.7 \frac{moles}{liter}

Explanation:

Molarity is a concentration measure that indicates the amount of moles of solute that appear dissolved in each liter of the mixture.

So, the Molarity of a solution is determined by the expression:

Molarity (M)=\frac{number of moles of solute}{volume}

Molarity is expressed in units (\frac{moles}{liter}).

In this case:

  • number of moles= 0.0350
  • Volume=50 mL=0.05 L (1 L= 1,000 mL)

Replacing:

Molarity=\frac{0.0350 moles}{0.05 L}

Molarity= 0.7 \frac{moles}{liter}

<u><em>The molarity of a 50.0 mL solution that contains 0.0350 mol of sodium sulfate 0.7 </em></u>\frac{moles}{liter}<u><em></em></u>

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