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Deffense [45]
3 years ago
13

Dtermine the volume in liters occupied by 0.030 miles of a gas at stp

Chemistry
1 answer:
aliina [53]3 years ago
4 0
1 mole -------- 22,4 L ( at STP )
0.030 moles --- ?

V = 0.030 * 22,4 / 1

V = 0.672 L

hope this helps!
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Write the two half-equations for the following redox reaction <br> 2H+ +2Br- +H2SO4= Br2 + SO2 +2H2O
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7 0
3 years ago
Estradiol is a female sexual hormone that causes maturation and maintenance of the female reproductive system. Elemental analysi
Ipatiy [6.2K]

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

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x = 18.0

Percentage of hydrogen in estradiol  :

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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

7 0
3 years ago
Blood ph is kept near a value of 7.3 - 7.5 because of
Ede4ka [16]

Answer:  Neutral Value

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If the pH becomes higher, then the blood will become basic in nature and it can also leas to the death of the person.

That is why the pH of the blood is maintianed at neutral value of 7.0 to 7.5

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As a heterogeneous mixture
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rarefactions are regions of low pressure due to particles being spread further apart
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2 years ago
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