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Nina [5.8K]
3 years ago
9

Cómo cambia la masa atómica promedio de un elemento dado un cambio en la abundancia de sus isótopos.

Chemistry
1 answer:
RUDIKE [14]3 years ago
7 0
Esto se queda igual entonces el lo mejor
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To covert from moles to atoms times the number of moles by Avogadro's Number (6.022×10²³)

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When liquid bromine is cooled to form a solid, which of the following types of solid would it form?.
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If liquid bromine is cooled to form a solid, which type of solid does it form? Brass is made by melting copper and zinc and physically mixing them. As this alloy is cooled, it forms a solid where the copper and zinc are not chemically bonded together.

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How many times of o are there?
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I would say 4 but you can figure it out or if you have a parent near by to
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How is<br> solid different from gas ?
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3 years ago
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Calculate the ph of a solution formed by mixing 200.0 ml of 0.30 m hclo with 300.0 ml of 0.20 m kclo. the ka for hclo is 2.9 × 1
masha68 [24]

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The pH of the solution will be 7.53.

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Dissociation constant of KClO=K_a=2.8\times 10^{-8}

Concentration of acid in 1 l= 0.30 M

Then in 200 ml = 0.30 M\times 0.200 L=0.06 M

The concentration of acid, HClO=[acid]= 0.006 M

Concentration of salt in 1 L = 0.20 M

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The pH of the solution will be given by formula :

pH=pK_{a}^o+\log\frac{[salt]}{[acid]}

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The pH of the solution will be 7.53.

4 0
3 years ago
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