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Tcecarenko [31]
1 year ago
13

All materials are made of _____________.

Chemistry
2 answers:
monitta1 year ago
3 0

Answer:

b atoms

Explanation:

everything is made up of atoms

xeze [42]1 year ago
3 0
Hey hun!!! the answer would be B! Atoms
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How many grams of solute are needed to make 2.50 L of a 1.75 M solution of Ba(NO3)2?
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1143.4grams of solute are needed to make 2.50L of a 1.75M solution of Ba(NO3)2. Details about molarity can be found below.

<h3>How to calculate mass?</h3>

The mass of a substance can be calculated by multiplying the number of moles by its molar mass.

However, the number of moles can be calculated by using the following formula:

Molarity = no of moles ÷ volume

no of moles = 1.75 × 2.5

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molar mass of Ba(NO3)2 = 261.34g/mol

mass of Ba(NO3)2 = 261.34 × 4.38

mass of Ba(NO3)2 = 1143.4grams.

Therefore, 1143.4grams of solute are needed to make 2.50L of a 1.75M solution of Ba(NO3)2.

Learn more about mass at: brainly.com/question/19694949

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