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vekshin1
3 years ago
10

What is the mass of 3.0 x 1023 atoms of neon

Chemistry
2 answers:
Xelga [282]3 years ago
8 0
1 mole =6.0 * 10^23 atoms
3.0*10^23 atoms = 0.5 moles
the molar mass of neon is 20.18g/mole
0.5 moles = 10.09 grams
Alex Ar [27]3 years ago
5 0
6.022×10^23 atom=20 gm
3×1023 atom= 20×3×1023/6.022×10^23
ans =1.019×10^-19
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2 years ago
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nikitadnepr [17]
The type of bond between two elements can be predicted by measuring the electronegativity difference between the two atoms. Based on this difference the type of bonds are classified as,
E.N difference between 0.0 to 0.3 = Non Polar bond
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E.N difference between 1.1 to 2.0 = Very Polar Covalent Bond
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(E.N of N) 3.04 - (E.N of C) 2.55 = 0.49
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7 0
4 years ago
Why do valence electrons form bonds to create molecules and compounds?
Ksju [112]

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A better way of saying it is that the valence electrons are <em>less strongly attracted</em> to the nucleus.

All electrons have the same size, but the <em>orbitals</em> they occupy have different sizes.

3 0
3 years ago
a gas measured a volume 100 mL under pressure of 740 mmHg. What would the volume be under a pressure of 780 mmHg with constant t
nikdorinn [45]

Answer:

<h2>94.87 mL</h2>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we're finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

We have

V_2 =  \frac{100 \times 740}{780}  =  \frac{74000}{780}  \\  = 94.8717...

We have the final answer as

<h3>94.87 mL</h3>

Hope this helps you

7 0
2 years ago
Answer the following question about steriochemistry.
algol13

Answer:

b is the answer

Explanation:

5 0
3 years ago
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