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artcher [175]
3 years ago
12

The temperature of a liquid is 75k what is the temperature im celsius

Chemistry
1 answer:
zloy xaker [14]3 years ago
3 0
75 - 273.16 = -198.15°C
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How many grams of solid NaOH are required to prepare a 400ml of a 5N solution? show your work!
Nuetrik [128]

<u>Answer:</u> The mass of solid NaOH required is 80 g

<u>Explanation:</u>

Equivalent weight is calculated by dividing the molecular weight by n factor. The equation used is:

\text{Equivalent weight}=\frac{\text{Molecular weight}}{n}

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Putting values in above equation, we get:

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Normality is defined as the umber of gram equivalents dissolved per liter of the solution.

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\text{Normality of solution}=\frac{\text{Number of gram equivalents} \times 1000}{\text{Volume of solution (in mL)}}

Or,

\text{Normality of solution}=\frac{\text{Given mass}\times 1000}{\text{Equivalent mass}\times \text{Volume of solution (in mL)}}         ......(1)

We are given:

Given mass of NaOH = ?

Equivalent mass of NaOH = 40 g/eq

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Normality of solution = 5 eq/L

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