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anygoal [31]
3 years ago
14

When a pure substance melts does its particles get larger

Chemistry
1 answer:
Lera25 [3.4K]3 years ago
3 0
No,they just separate away from each other
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Mechanical energy is the total amount of and energy in a system. science
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Estradiol is a female sexual hormone that causes maturation and maintenance of the female reproductive system. Elemental analysi
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Answer:

The molecular formula of estradiol is: C_{18}H_{24}O_2.

Explanation:

Molar mass of of estradiol = M= 272.37 g/mol

Let the molecular formula of estradiol be C_xH_yO_z

Percentage of an element in a compound:

\frac{\text{Number of atoms of element}\times \text{Atomic mass of element}}{\text{molecular mass of element}}\times 100

Percentage of carbon in estradiol  :

\frac{x\times 12 g/mol}{272.37 g/mol}\times 100=79.37\%

x = 18.0

Percentage of hydrogen in estradiol  :

\frac{y\times 1g/mol}{272.37 g/mol}\times 100=8.88\%

y = 24.2 ≈ 24

Percentage of oxygen in estradiol  :

\frac{z\times 16 g/mol}{272.37 g/mol}\times 100=11.75\%

z = 2

The molecular formula of estradiol is: C_xH_yO_z:C_{18}H_{24}O_2

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3 years ago
What is the mass of one mole of nitrogen atoms?
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Explanation

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