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Elodia [21]
2 years ago
7

Would you have more kinetic energy if you are traveling fast or slow? fast slow

Chemistry
2 answers:
lara31 [8.8K]2 years ago
8 0

Answer:

fast

Explanation:

Because kinetic energy is equal to half the product of mass and square of velocity, increase in velocity would increase the kinetic energy as well.

Andrej [43]2 years ago
3 0

Answer:

It's faster.. because the faster an object moves, the more kinetic energy it has

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What is the concentration of a solution with a volume of 660L that contains 33.4g of AlCO3?
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The concentration of the solution is 5.8168 × 10^{-4} mol.dm^{-3}

Explanation:

Here, we want to calculate the concentration of the solution.

The unit of this is mol/dm^3

So the first thing to do here is to calculate the number of moles of the solute present, which is the number of moles of AlCO3

The number of moles = mass/molar mass

molar mass of AlCO3 = 27 + 12 + 3(16)  = 27 + 12 + 48 = 87g/mol

Number of moles = 33.4/87 = 0.384 moles

This 0.384 moles is present in 660 L

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Recall 1 dm^3 = 1L

x * 660 = 0.384 * 1

x = 0.384/660 = 0.00058168 = 5.8168 * 10^-4 mol/dm^3

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