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Furkat [3]
2 years ago
9

How many moles are present in a sample of HCI with a mass of with a mass of 3.65g?

Chemistry
2 answers:
Jobisdone [24]2 years ago
6 0

Answer:

number of moles = 0.1001 mol

Explanation:

ingeunuity 2021

kifflom [539]2 years ago
3 0

Answer:

number of moles = 0.1001 mol

Explanation:

number of moles = mass/molar mass

number of moles = 3.65g / 36.459 g/mol

n = 0.1001 mol

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Answer:

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Explanation:

According to the octet rules, atoms reach stability when are surrounded by eight electrons in their valence shell when they combine to form a chemical compound.

From the options, the only compound in which the central atom does not meet the octet rules is BH₃. The central atom is boron (B), which has 3 electrons in its valence shell. When B is combined with hydrogen (H), 3 electrons from the 3 atoms of H are added. The total amount of electrons is 6, fewer than 8 electrons needed to meet the rule.

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5 0
2 years ago
At a given temperature, 4.06 atm of H2 and 3.5 atm of Cl2 are mixed and allowed to come to equilibrium. The equilibrium pressure
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<u>Answer:</u> The value of K_p for the given chemical reaction is 0.1415

<u>Explanation:</u>

Equilibrium constant in terms of partial pressure is defined as the ratio of partial pressures of the products and the reactants each raised to the power their stoichiometric ratios. It is expressed as K_p

For a general chemical reaction:

aA+bB\rightarrow cC+dD

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K_p=\frac{p_{C}^cp_{D}^d}{p_{A}^ap_{B}^b}

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H_2(g)+Cl_2(g)\rightleftharpoons 2HCl(g)

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K_p=\frac{(p_{HCl})^2}{(p_{H_2)}(p_{Cl_2})}

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Putting values in above equation, we get:

K_p=\frac{(1.418)^2}{(4.06)\times (3.5)}\\\\K_p=0.1415

The value of K_p for the given chemical reaction is 0.1415

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