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katen-ka-za [31]

3 years ago

11

What is the mole fraction, X, of solute and the molality, m (or b), for an aqueous solution that is 18.0% NaOH by mass?

1 answer:

ss7ja [257]3 years ago

3 0

U should look online cause that is a hard one

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Which of the following is true about most predators? (Select all that apply.)

-Dominant- [34]

Answer:

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2 years ago

The balanced reaction between aqueous nitric acid and aqueous strontium hydroxide is ________.

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Akimi4 [234]

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3 years ago

Read 2 more answers

What electrically neutral atom will have an electron configuration of 1s2 2s2 2p4?

abruzzese [7]

Answer:- oxygen.

Explanations:- The electronic configuration is given and we are asked to figure out the electrically neutral atom that will have the electron configuration, $1s^22s^22p^4$ .

The sum of electrons for this electron configuration is 8. If we look at the periodic table then 8 is the atomic number of oxygen.

So, the electrically neutral atom for the given electron configuration is oxygen.

6 0

2 years ago

What is the molar mass of just the O in CO2?

Vlad1618 [11]

Answer:

16 g/mol

Explanation:

In CO2, it means we have 1 mole of carbon and 2 moles of oxygen.

However, we want to find the molar mass of just a single mole of oxygen.

Now, from tables of values of elements in electronic configuration, the molar mass of oxygen is usually approximately 16 g/mol.

In essence the molar mass is simply the atomic mass in g/mol

8 0

3 years ago