2 years ago

What is the pH of hydrogen chloride and sodium oxide

Chemistry

1 answer:

timofeeve [1]2 years ago

7 0

Hydrochloric acid and sodium hydroxide neutralise each other and the pH resulting solution will be 7.

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A substance has twice the number of particles as 12 grams of carbon-12. How many

klasskru [66]

Answer:

D)2.0

Explanation:

Avogadro’s number represent the number of the constituent particles which are present in one mole of the substance. It is named after scientist Amedeo Avogadro and is denoted by $N_0$ .

Also, it is the number of particles in exactly 12.000 g of isotope carbon 12.

Avogadro constant:-

$N_a=6.023\times 10^{23}$

Thus,

Number of particles as 12 grams of carbon-12 constitutes 1 mole

<u>Twice the number of particles as 12 grams of carbon-12 constitutes 1*2 mole</u>

Thus, moles in the substance = 2.0 moles

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Fullerenes (like the one shown) are made up of hexagonal rings of carbon atoms (like in graphite or graphene) and alternating pe

vovikov84 [41]

Answer:

Your answer choice is D

Explanation:

I just got it right on USATestprep :))

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