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sertanlavr [38]
2 years ago
9

How many grams are in 2.30 x 10^23 atoms in Na?

Chemistry
1 answer:
aksik [14]2 years ago
4 0

There are 8.786 g

<h3>Further explanation </h3>

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

2.30 x 10²³ atoms in Na :

\tt mol=\dfrac{2.3\times 10^{23}}{6.02\times 10^{23}}=0.382

mass :

\tt mass=mol\times Ar~Na\\\\mass=0.382\times 23=8.786~g

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Write the molecular formula for a compound with the possible elements C, H, N and O that exhibits a molecular ion at M
liberstina [14]

Answer:

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Explanation:

From the given information, since the molecular mass of the ion M+ is not given;

Let's assume M+ = 58.0423

So, by applying the 13th rule;

we will need to divide the mass by 13, after dividing it;

The quotient n = no. of carbon; &

The addition of the quotient (n) with the remainder r =  no. of hydrogen.

So;

\dfrac{58}{13}= 4 \ remainder \ 6

So;

C_nH_{n+r} = C_4H_{4+6}

= C_4H_{10}

From the given information; we have oxygen present, so since the mass of oxygen = 16, we put oxygen in the molecular formula by removing CH_4. Also, since the mass is an even number then Nitrogen is 0.

So, we have:

= \mathbf{C_3H_6O}

6 0
2 years ago
Put the steps in the process of photosynthesis in order
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4 0
3 years ago
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Answer:

Explanation:

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Temperature - 25° C  

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Keeping the values in equation-  

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3 years ago
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The question is incomplete. Complete question is attached below.
..........................................................................................................................

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