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inessss [21]
2 years ago
12

Calculate the number of atoms in 112 g of iron.​

Chemistry
1 answer:
mr_godi [17]2 years ago
8 0

Answer:

1 mole of iron (Fe) = 56 g (molar mass)

Since 56 g of iron = 1 mol.

Therefore, 112 g of iron= 1/ 56 ×112 mol = 2 mol.

Explanation:

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Define Aqua regia and write a short note on it
meriva

Answer:

Explanation:

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The acid is very corrosive due to its formulation and it nearly reacts to dissolve all substances including the unreactive gold metal. It is formed by mixing the two acids in a proportion of 1:3, i.e HCl in 3 parts and nitric acid in 1 part.

The mixture dissolves a wide range of metals

3 0
3 years ago
What will be the volume of a balloon at 98 kPa if its volume is 9.65 L at 235 kPa?
OlgaM077 [116]
<span>Boyle's Law or Boyle-Mariotte's Law: Under constant temperature, the volume occupied by a given fixed mass of a gas is inversely proportional to its pressure.

Formula:
</span>\frac{ P_{1} }{ P_{2} } = \frac{ V_{2} }{ V_{1} }
Product of extremes equals product of means
P_{1} * V_{1} = P_{2} * V_{2}

Data:
P_{1} = 235\:kPa
V_{1} = 9.65\:L
P_{2} = 98\:kPa
V_{2} = ?

Solving:
P_{1} * V_{1} = P_{2} * V_{2}
235*9.65 = 98*V_{2}
2267.75 = 98V_{2}
98V_{2} = 2267.75
V_{2} =  \frac{2267.75}{235}
\boxed{\boxed{V_{2} \approx 23.14\:L}}\end{array}}\qquad\quad\checkmark
4 0
3 years ago
What is the number of moles in 10.62 L of H2S gas at STP?
Lina20 [59]

Answer:

0.474 moles

Explanation:

divide 10.62 by 22.4.

7 0
2 years ago
Which is the force of attraction that holds atoms together?
Morgarella [4.7K]
B) chemical bond i believe is the correct answer
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3 years ago
An element has six valence electrons available for bonding which group of the periodic table does this element most likely belon
professor190 [17]
Elements in groups 16 has six valance electrons.
8 0
3 years ago
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