3 years ago

Which properties result from minimal interactions between molecules in a gas?

Chemistry

1 answer:

7nadin3 [17]3 years ago

5 0

The liquids so play tank i am just completing my sdgsgr

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How many grams are in 3.00 x 10^24 molecules of Zn(C2H3O2)2?

Burka [1]

Answer:

Mass = 917.4 g

Explanation:

Given data:

Number of molecules = 3.00 ×10²⁴ molecules

Mass in gram = ?

Solution:

1 mole contain 6.022 × 10²³ molecules

3.00 ×10²⁴ molecules × 1 mol / 6.022 × 10²³ molecules

0.5×10¹ mol

5 mol

Mass in gram:

Mass = number of moles × molar mass

Mass = 5 mol × 183.48 g/mol

Mass = 917.4 g

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2 years ago

What does one mole of H2O correspond to?

Andrei [34K]

Answer: A

Explanation:

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2 years ago

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The volume of a gas is 5.0 L, when the temperature is 5.0 degrees Celsius. If the temperature is increased to 10.0 degrees Celsi

Rom4ik [11]

Answer:5.1L

Explanation:

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2 years ago

The ionic charge of an element in Group 6A is 2–.<br><br> -True<br><br> -False

natita [175]

True. These ions are of a 2- charge. Oxygen is an example. It will form a 2- charge if ionize.

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3 years ago

Calculate the molarity when 135 g of KCl is dissolved to make a 2.50 L solution. Round to two significant digits.

inysia [295]

Explanation:

$\textrm{Molarity of a solution}=\frac{\textrm{Number of moles of solvent}}{\textrm{Volume of solution in Liters}}$

We are given a $2.50L$ solution which contains $135g$ of $KCl$ .

To calculate number of moles of $KCl$ present, we need to find it's molar mass from charts. Molar Mass of $KCl$ is known to be $74.55\frac{g}{Mol}$ .

Number of moles of $KCl$ present = $\frac{\textrm{Given weight}}{\textrm{Molar Mass}}\textrm{ = }\frac{135g}{74.55\frac{g}{Mol}}\textrm{ = }1.81087mol$

Molarity = $\frac{1.81087mol}{2.50L}=0.7243\frac{mol}{L}$

∴ Molarity of given $KCl$ solution = $0.72\frac{mol}{L}$

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3 years ago