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Ipatiy [6.2K]
3 years ago
8

A compound has 15.39 g of gold for every 2.77 g of chlorine.

Chemistry
1 answer:
Ugo [173]3 years ago
3 0

Answer:

There is 5.56 g of gold for every 1 g of chlorine

Explanation:

The question is to determine the simplest mass ratio of gold to Chlorine in the compound.

Since the mass of gold in the compound compared to chlorine is 15.39 g for every 2.77 g, the mass of gold per gram of chlorine is given as:

15.39 / 2.77 = 5.56 g of gold to two decimal places

<em>Therefore, for every 5.56 g of gold, there is 1 g of chlorine.</em>

<em>Note : The ratio in which different elements combine by mass to form a compound is given by the law of constant composition which states that, "all pure samples of a particular chemical compound contain the same elements combined in the same proportion by mass.</em>

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17 protons, 20 neutrons, and 17 electrons​.

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A periodic table can be defined as the standard arrangement of chemical elements by atomic number, electronic configuration and chemical properties in a tabular form.

Generally, a proper representation of the mass number and atomic number of chemical elements is key and very important in chemistry.

Furthermore, as a rule, it should be noted that the mass number (nucleon number) is always larger than the atomic number(number of proton).

The mass number of this neutral atom of Cl-37 is 37 and we know that the atomic number (number of protons) of chlorine is 17. Also, the atomic number of an element is equal to the number of its electrons.

A neutral atom of Cl-37 has 17 protons, 20 neutrons, and 17 electrons.

Hence, a neutral atom of Cl-37 can be identified based on its number of protons because it represent its atomic number, which is what is used to differentiate an atom of an element from the atom of another chemical element.

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Identify which balance was used to make each mass reading. 0.90 g Choose... 1.230 g Choose... 5.43 g Choose... 4.0000 g Choose..
Reika [66]

The balance that can be used to measure a mass reading of 0.90 g will be a balance with ±0.01 g tolerance.

The mass reading       balance used for measurement

1.230 g                      ±0.001 g tolerance

5.43g                         ±0.01 g tolerance

4.0000g                    ±0.0001 g tolerance

6.539g                       ±0.001 g tolerance

<h3>What is the tolerance of a balance?</h3>

The tolerance of a balance is the number of decimal place values shown on the balance and it is the permissible limitations measured in grams, that a balance can tolerate.

  • Hence, depending on the decimal place value behind a mass reading will determine the balance used for measurement.

From the given parameters:

The mass reading       balance used for measurement

0.90 g                        ±0.01 g tolerance

1.230 g                      ±0.001 g tolerance

5.43g                         ±0.01 g tolerance

4.0000g                    ±0.0001 g tolerance

6.539g                       ±0.001 g tolerance

Learn more about tolerance of a balance here:

brainly.com/question/4804631

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