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andrey2020 [161]
3 years ago
6

If two people attempt the same maneuver, what determines the amount of force that each is required to exert?

Chemistry
1 answer:
Helen [10]3 years ago
3 0

Answer:

Explanation:

you need to change either the turn of the jump or push off higher or lower from the wall

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Answer: The empirical formula of X is C_{5}H_4O_2.

Explanation:

If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mass of C = 62.4 g

Mass of H = 4.19 g

Mass of O = 33.2 g

Step 1 : convert given masses into moles.

Moles of C=\frac{\text{ given mass of Na}}{\text{ molar mass of Na}}= \frac{62.4g}{12g/mole}=5.2moles

Moles of H=\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{4.19g}{1g/mole}=4.19moles

Moles of O = \frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{33.2g}{16g/mole}=2.1moles

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C =\frac{5.2}{2.1}=2.5

For H =\frac{4.19}{2.1}=2

For O =\frac{2.1}{2.1}=1

The ratio of C: H: O = 2.5 : 2 : 1

Converting it into simple whole number ratios by multiplying by 2:

Hence the empirical formula of X is C_{5}H_4O_2.

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