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3 years ago

How many moles of mercury atoms are in 5.418 x 1023 atoms of mercury? moles

Chemistry

2 answers:

Andrej [43]3 years ago

4 0

Answer:

0.9 moles of Hg contain 5.418×10²³ atoms

Explanation:

As we know, Avogadro's number (NA) is the amount of particles that are contained in 1 mol → 6.02×10²³

Let's make a rule of three for this:

6.02×10²³ atoms are contained in 1 mol of Hg

5.418×10²³ atoms would be contained in (5.418×10²³ . 1) / NA = 0.9 moles

Verdich [7]3 years ago

3 0

Answer:

We have 0.8997 moles of mercury in 5.418 * 10^23 atoms of mercury

Explanation:

Step 1: Data given

Number of atoms of mercury = 5.418 * 10^23 atoms

Number of Avogadro = 6.022 *10^23 /mol

Step 2: Calculate number of moles of mercury

Moles mercury = number of atoms mercury / number of Avogadro

Moles mercury = 5.418 *10^23 /6.022*10^23 /mol

Moles mercury = 0.8997 moles

We have 0.8997 moles of mercury in 5.418 * 10^23 atoms of mercury

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Answer:

The answer to your question is HCl + NaOH ⇒ NaCl + H₂O

Explanation:

Data

Double displacement reaction

Balanced chemical reaction

HCl + NaOH ⇒ NaCl + H₂O

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1 Chlorine (Cl) 1

1 Sodium (Na) 1

2 Hydrogen (H) 2

1 Oxygen (0) 1

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2 years ago

Find concentration of solution of 45g of glucose is dissolved in water to prepare 500g solution?

ivolga24 [154]

Answer:

9% solution by mass

Explanation:

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2 years ago

1. Calculate the average reaction rate expressed in moles H2 consumed per liter per second.

valentina_108 [34]

Answer:

1) 0.0025 mol/L.s.

2) 0.0025 mol/L.s.

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For the reaction:

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2. Calculate the average reaction rate expressed in moles CI₂ consumed per liter per second.

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3 years ago

What is true of tectonic plates?

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Answer:

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3 years ago

Write ionic equations for any three of the following:

worty [1.4K]

The ionic equation is:

H⁺(aq) + NO₃⁻(aq) + Na⁺(aq) + OH⁻(aq) → Na⁺(aq) + NO₃⁻(aq) + H₂O(l)

HNO₃(aq) + NaOH(aq) → NaNO₃(aq) + H2O(l)

The required dissociations are

HNO₃(aq) → H⁺(aq) + NO₃⁻(aq)

NaOH(aq) → Na⁺(aq) + OH⁻(aq)

NaNO₃(aq) → Na⁺(aq) + NO₃⁻(aq)

So, the ionic equation is

H⁺(aq) + NO₃⁻(aq) + Na⁺(aq) + OH⁻(aq) → Na⁺(aq) + NO₃⁻(aq) + H₂O(l)

The ionic equation is

H⁺(aq) + Cl⁻(aq) + K⁺(aq) + OH⁻(aq) → K⁺(aq) + Cl⁻(aq) + H₂O(l)

HCl(aq) + KOH(aq) → KCl(aq) + H2O(l)

The required dissociations are

HCl(aq) → H⁺(aq) + Cl⁻(aq)

KOH(aq) → K⁺(aq) + OH⁻(aq)

KCl(aq) → K⁺(aq) + Cl⁻(aq)

So, the ionic equation is

H⁺(aq) + Cl⁻(aq) + K⁺(aq) + OH⁻(aq) → K⁺(aq) + Cl⁻(aq) + H₂O(l)

The ionic equation is

2H⁺(aq) + SO₄²⁻(aq) + Mg²⁺(aq) + 2OH⁻(aq) → Mg²⁺(aq) + SO₄²⁻(aq)

+ 2H₂O(l)

H₂SO₄(aq) + Mg(OH)₂(aq) → MgSO₄(aq) + 2H2O(l)

The required dissociations are

H₂SO₄(aq) → 2H⁺(aq) + SO₄²⁻(aq)

Mg(OH)₂(aq) → Mg²⁺(aq) + 2OH⁻(aq)

MgSO₄(aq) → Mg²⁺(aq) + SO₄²⁻(aq)

So, the ionic equation is

2H⁺(aq) + SO₄²⁻(aq) + Mg²⁺(aq) + 2OH⁻(aq) → Mg²⁺(aq) + SO₄²⁻(aq)

+ 2H₂O(l)

Learn more about ionic equations here:

brainly.com/question/11628165

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2 years ago