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Andrej [43]
2 years ago
7

How many atoms are in 19.6 g of Sodium?

Chemistry
1 answer:
Hitman42 [59]2 years ago
7 0

Answer:

Number of atoms = 5.1345 x 10²³

Explanation:

Given:

Mass of sodium = 19.6

Find:

Number of atoms

Computation:

We know that atomic mass of sodium is 22.98

So,

Number of atoms = [Mass of sodium/atomic mass of sodium]Avogadro's number

Number of atoms = [19.6 / 22.98]6.02 x 10²³

Number of atoms = 5.1345 x 10²³

can i have Brainliest i need 1 more

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Answer:

For disodium hydrogen phosphate:

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Explanation:

First, you have to put all the data from the problem that you going to use:

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What we need to find the pKa of the weak acid, in this case NaH2PO4, for that you need to find the Ka (acid constant) of NaH2PO4, and for this we use the pKa of the phosphoric acid as follow:

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The solution of the problem is attached to this answer.

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3 years ago
A substance joined by this type of bond has a low melting point
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Hello!

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