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Lyrx [107]
3 years ago
9

How many moles of tin atoms are in a pure tin cup with a mass of 37.6 g ?

Chemistry
1 answer:
Georgia [21]3 years ago
3 0
Tin is an element called Stannum and has the symbol Sn. Molar mass is the mass of 1 mol of a compound, 1 mol of any substance is made of 6.022 x 10²³ units, these units could be atoms making up an element or molecules making up a compound. 
While the number of atoms making up 1 mol is the same for any element, the weight of 1 mol of substance varies from one another.
In tin(Sn) molar mass - 118.71 g/mol
In 118.71 g - there's 1 mol of tin
therefore in 37.6 g of tin - 1 x 37.6 / 118.71 = 0.31 mol 
In 37.6 g of tin, there's 0.31 mol 
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Which of the following chemical formulas represents a common acid?
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HCI is one of the most common acids out of the following
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For the following reaction, identify the element that was oxidized, the element that was reduced, and the reducing agent. Give a
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6 0
3 years ago
The molar mass of hydrogen molecules is 2g/mol and the molar mass of oxygen molecules is 32g/mol. What is the ratio of the avera
Alona [7]

Answer:

1

Explanation:

For an ideal gas, the average kinetic energy is given by:

Ek = (3/2)*n*R*T

Where n is the number of moles, R is the gas constant (8.31 J/mol*K), and T the temperature. The gases have the same number of moles, and the same temperature, so they will have the same average kinetic energy:

Ek = (3/2)*1*8.31*300

Ek =3739.5 J

So, the ratio between then is 1.

8 0
3 years ago
Which of these is a chemical property? color, compressibility, heat of combustion, malleability
Flauer [41]
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6 0
3 years ago
Read 2 more answers
To what volume should 5.0 g of KCl be diluted in order to prepare a 0.15 M solution? L
Nesterboy [21]

Answer:0.45L

Explanation:

molarity=0.15M

Mass=5g

No of moles=mass ➗ molecular mass

Molecular mass of KCL=39.0983x1+35.453x1

Molecular mass of KCL=74.5513

No of moles=5 ➗ 74.5513

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Volume in liters=0.067 ➗ 0.15

Volume in liters=0.45L

7 0
3 years ago
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