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Artyom0805 [142]
2 years ago
5

In one or two sentences, explain why the combined weight of several liquids mixed in an open flask can be less than but never mo

re than the sum of all the weights of the ingredients.​
Chemistry
1 answer:
olga55 [171]2 years ago
4 0

Answer: The law of conservation of mass states that mass is neither created or destroyed, so the combined mass of all the products after the reaction will be the same as the mass of all the reactants and never more, but since the flask is not closed, the gases produced from the reaction will move into the atmosphere and the product left behind , the solids and/or liquids, will be the only products that you’ll end up weighing, meaning it’ll be less weight than the original reactants. The reason I’m interchanging weight and mass is because although weight changes with gravity, so long as the gravitational force stays constant throughout the experiment, it’s pretty much the same.

Explanation:

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How are the inner core and outer core diffrent?How are they similar
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Explain the flexibility and the flow characteristics of water​
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3 years ago
How molecules of N2 gas can be present in a 2.5 L flask at 50°C and 650 mmHg?
ratelena [41]

Answer:

0.482 ×10²³ molecules

Explanation:

Given data:

Volume of gas = 2.5 L

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Solution:

PV= nRT

n = PV/RT

n = 0.86 atm × 2.5 L /0.0821 atm. mol⁻¹. k⁻¹. L × 323 k

n = 2.15 atm. L /26.52 atm. mol⁻¹.L

n = 0.08 mol

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one mole = 6.022 ×10²³ molecules

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4) express 55mg in kilograms
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