3 years ago

What is the gram formula mass of Fe(NO3)3

Chemistry

1 answer:

olga55 [171]3 years ago

6 0

242 g/mol...... hope it helps :)

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Which element and how many atoms does each compound have in the picture?

Stells [14]

The first one has 35 atoms and the elements hydrogen, oxygen and chlorine

The second one has 9 atoms and the elements sodium, carbon, and helium

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4 years ago

15. An electrically neutral atom consists of 15 neutrons, 13 electrons, and a number of protons. What is its mass number?

Korvikt [17]

Answer:

Explanation:

it states that the atom is neutral, meaning the number of electrons and protons are the same. so if there are 13 electrons, there are 13 protons. And the mass number is neutrons plus protons. So 13+15 is 28

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3 years ago

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Helpppppo meeeeee plzzzzzzzzz

antoniya [11.8K]

For 2 it’s 2ft 10in
For 5 it’s 3ft 6in
You: put how tall you are
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3 years ago

An open "empty" 2 L plastic pop container, which has an actual inside volume of 2.05 L, is removed from a refrigerator at 5 °C a

Pani-rosa [81]

2.168 L of air will leave the container as it warms

<h3>Further explanation</h3>

Given

V₁=2.05 L

T₁ = 5 + 273 = 278 K

T₂ = 21 + 273 = 294 K

Required

Volume of air

Solution

Charles's Law

When the gas pressure is kept constant, the gas volume is proportional to the temperature

$\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}$

Input the value :

V₂=(V₁.T₂)/T₁

V₂=(2.05 x 294)/278

V₂=2.168 L

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3 years ago

Oxygen atoms have six outer electrons<br><br> Write the symbol for an oxide ion.

Shkiper50 [21]

Answer:

$O^{2-}$ is the symbol for an oxide ion

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