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marishachu [46]
3 years ago
15

The name for Na2 O in chemistry ​

Chemistry
1 answer:
IgorC [24]3 years ago
5 0
Pretty sure it’s sodium oxide.. ?
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What is the pH of 0.000134 M solution of HCI?
mafiozo [28]

Answer: The pH will be 3.87

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

pH=-\log [H^+]

HCl\rightarrow H^++Cl^{-}

According to stoichiometry,

1 mole of HCl gives 1 mole of H^+

Thus 0.000134 moles of HCl gives =\frac{1}{1}\times 0.000134=0.0001342 moles of H^+

Putting in the values:

pH=-\log[0.000134]

pH=3.87

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3 years ago
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A very small country that has managed to stay independent of their larger neighbors. (Example: Vatican City)
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First option (Independent State)

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A naturally occurring oil co-distills with water to produce an oil/water distillate that is 20% oil by weight. If the molecular
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Answer:

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mole fraction of oil =  .2 / .2 + 4.444

= .2 / 4.644

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