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aev [14]
4 years ago
14

Why is the average atomic mass used when calculating grams of a substance?

Chemistry
2 answers:
GarryVolchara [31]4 years ago
6 0

The elements in the substance are mixtures of their isotopes.

galina1969 [7]4 years ago
4 0
The average atomic mass includes all of the isotopes of that atom which exist in nature. Almost all elements have at least two isotopes which naturally occur. 
Recall that isotopes are atoms with the same atomic number (protons), but a different number of neutrons. Since neutrons contribute the same amount of mass as a proton (1 amu), differing numbers of neutrons will change the mass of the atoms.

If you like my answer, please vote me a 'brainliest'; trying to improve my site stats :-)
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Who is your favorite scientist?
slega [8]

Wait a second shoudl YOU do this one cause this is more of a YOU how am i suppose to know who you like?

i could give you a scientist just try albert Einstein

7 0
3 years ago
How many equivalents are present in 10 g of Ca2+? <br> 1 <br> 0.5 <br> 1.5 <br> 2
Lynna [10]

0.5

Explanation:

Given parameters:

Mass of Ca²⁺ = 10g

unknown:

Equivalent weight = ?

Solution:

Equivalent weight that is the amount of electrons which a substance gains or loses per mole.

Ca²⁺ has +3 charge

It lost 2e⁻;

therefore;

  In 1 mole of  Ca²⁺, we have 2 equivalent weight

1 mol  Ca²⁺ = 2eq. wts. 

1 mol Ca x (40 g / 1 mol ) x (1 mol / 2 eq.wts.) = 20.0 g = 1 eq.wt. 

Therefore;

10.0 g  Ca²⁺ x (1 eq.wt. / 20.0 g) = 0.5 eq.wts.

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8 0
3 years ago
Explain the states of solid, liquid and gas in terms of molecular movement and molecular packing?*​
lora16 [44]
Solid- molecules vibrate in place and tightly packed
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7 0
3 years ago
What type of chemical reaction is NH3
Gekata [30.6K]

Answer:

Combination reaction

Explanation:

N2+H2 = NH3

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7 0
4 years ago
A sample of ascorbic acid (vitamin C) is synthesized in the laboratory. It contains 30.0 g carbon and 40.0 g oxygen. Another sam
mote1985 [20]

Answer:

16.933g approximately 17.0 grams

Explanation:

From the simple promotions and given the same compound ascorbic acid (vitamin C)

In the laboratory synthesised ascorbic acid

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That is the mass of Oxygen per unit mass of Carbon

Per gram of Carbon we have

(30.0g Carbon)÷30 combines with (40.0g of Oxygen)÷30

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8 0
3 years ago
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