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3 years ago

Two closed vessels contain chlorine gas at the same conditions of temperature and

Chemistry

1 answer:

Anna [14]3 years ago

8 0

The number of moles : 12.01

<h3>Further explanation</h3>

Given

V₁ = 1.3 L contains 6.7 mol of gas(n₁)

V₂ = 2.33 L

Required

The number of moles

Solution

Avogadro's : at the same temperature and pressure, the ratio of gas volume will be equal to the ratio of gas moles

$\tt \dfrac{V_1}{V_2}=\dfrac{n_1}{n_2}$

$\tt \dfrac{1.3}{2.33}=\dfrac{6.7}{n_2}\\\\n_2=12.01$

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Answer:

4.7485 g

Explanation:

4.50 x 10^22 Cu atoms * (1 mol Cu / 6.022 x 10^23 Cu atoms) * 63.546 g Cu/(mol Cu) = 4.7485 g

In every mole of Cu, there are 6.022 x 10^23 atoms (Avogadro's number). The molecular weight of copper is 63.546 g/mol.

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2 years ago

In the reaction MgCl2 + 2KOH Mg(OH)2 + 2KCl, how many moles of Mg(OH)2 are produced for every mole of MgCl2?. A. 3. B. 1. C. 2.

aksik [14]

Mole ratio:

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Answer B

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3 years ago

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telo118 [61]

It can form dipole-dipole interactions but that’s all

6 0

2 years ago

Mole ratios how can the coefficients in a chemical equation be interpreted

navik [9.2K]

Answer:

The coefficient in a balanced chemical equation indicates the mole ratio of both reactants and products.

Explanation:

For example lets consider the reation between Hydrogen and Oxygen to form water:

2H2 + O2 ----------------------- 2H2O

In this reaction, the coefficients of the balanced reaction can be transformed to Mole ratio according to Avogadro's Law which states that at standard temperature and pressure, equal volume of gases contain the same number of moles.

So the mole ratio for the above equation is the ratio of the coefficient:

2moles : 1 mole : 2 moles

8 0

2 years ago

The boiling points for the homonuclear diatomic molecules in the halogen family are 85 K, 238 K, 332 K, 457 K and 610 K. Which s

patriot [66]

Answer:

$Cl_{2}$ has boiling point of 238 K

Explanation:

Boiling point depends on different intermolecular force such as molecular wight, dipole-dipole attraction force, hydrogen bonding, ionic attraction force.

Homonuclear diatomic molecules are covalent non-polar molecules and thereby free from dipole-dipole attraction force, hydrogen bonding and ionic interaction forces.

Hence, boiling point of homonuclear diatomic molecules depends solely on molecular weight.

We know, higher the molecular weight of a molecule, higher will be its boiling point. This phenomenon can be realized in terms of increasing london dispersion force with increase in molecular weight.

Decreasing order of molecular weight of halogen molecules :

$I_{2}$ > $Br_{2}$ > $Cl_{2}$ > $F_{2}$

So, decresing order of boiling point of halogen molecules:

$I_{2}$ > $Br_{2}$ > $Cl_{2}$ > $F_{2}$

Hence $Cl_{2}$ has boiling point of 238 K

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3 years ago