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sveta [45]
3 years ago
7

The density of sodium is 968 g/cm3. Suppose you need 250 gm of sodium for an experiment. Which volume of sodium do you need? a 2

,420 cm3 b 0.26 cm3 c 3.87 cm3
Chemistry
1 answer:
Flauer [41]3 years ago
5 0
Density = 968 g/cm³

mass = 250 g

Volume  = ?

Therefore:

D = m / V

968 = 250 / V

V = 250 / 968 => 0.26 cm³  

Answer C

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Calculate the number of moles equivalent to 12.7 gram of iodine molecule ​
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\LARGE{ \boxed{ \purple{ \rm{Answer}}}}

☃️ Chemical formulae ➝ \sf{I_2}

How to find?

For solving this question, We need to know how to find moles of solution or any substance if a certain weight is given.

\boxed{ \sf{No. \: of \: moles =  \frac{Given \: weight}{Molecular \: weight} }}

Solution:

❍ Molecular weight of \sf{I_2}

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<u>━━━━━━━━━━━━━━━━━━━━</u>

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According to Boyle's law, if the temperature were tripled as the number of moles and the volume were held constant, the pressure would triple (option C).

<h3>What is Boyle's law?</h3>

Boyle's law is the observation that the pressure of an ideal gas is inversely proportional to its volume at constant temperature.

However, when the temperature of a gas is increased, the pressure of the gas also increases provided the volume is constant.

According to this question, the temperature of a gas tripled as the number of moles and the volume were held constant.

Therefore, according to Boyle's law, if the temperature were tripled as the number of moles and the volume were held constant, the pressure would triple.

Learn more about Boyle's law at: brainly.com/question/1437490

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