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3 years ago

How many moles of chlorine gas is contained in 4.81x10^24 molecules

Chemistry

1 answer:

ziro4ka [17]3 years ago

6 0

Answer:

7.99 mol

Explanation:

Step 1: Given data

Molecules of chlorine gas: 4.81 × 10²⁴ molecules

Step 2: Calculate how many moles of chlorine gas corresponds to 4.81 × 10²⁴ molecules of chlorine gas

In order to convert molecules to moles, we will use Avogadro's number: there are 6.02 × 10²³ molecules of chlorine gas in 1 mole of molecules of chlorine gas.

4.81 × 10²⁴ molecules × (1 mol/6.02 × 10²³ molecules) = 7.99 mol

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A.has mass and takes up space

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2 years ago

Given the following balanced equation, determine the rate of reaction with respect to [Cl2]. If the rate of Cl2 loss is 4.44 × 1

PolarNik [594]

Answer:

8.88 x 10⁻² M/s

Explanation:

The rate of reaction for:

NO(g) + Cl₂ (g) ⇒ 2NOCl(g)

is rate = -ΔNO/Δt = -ΔCl2/Δt = 1/2 ΔNOCl/Δt

so ΔNOCl/Δt = 2 ΔCl2/Δt = 2 x 4.44 × 10⁻² M/s = 8.88 x 10⁻² M/s

In general given a reaction

aA + bB ⇒ cC + dD

rate = -1/a ΔA/Δt = -1/b ΔB/Δt = 1/c ΔC/Δt = 1/d ΔD/Δt

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3 years ago

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mr Goodwill [35]

2 P + 3 Br2 —> 2 PBr3

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2 years ago

Displacement Reactions involving Acids Reaction Observations (Before mixing) Both clear Classify Reaction (Select all that apply

Soloha48 [4]

A reaction in which heat is evolved is an exothermic reaction while a reaction in which heat is absorbed is an endothermic reaction.

In the first case; Na2CO3 + H2SO4, we can see that this is an acid - base reaction therefore it is a neutralization reaction. Since the tube was hot after reaction, heat is given off so it is exothermic.

In the second case; NaOH + H2SO4, we can see that this is an acid - base reaction therefore it is a neutralization reaction. We are told that the tube is not hot but we don't know the initial temperature of the tube or if it was colder than it's initial temperature so we can not make any inference regarding whether the reaction is endothermic or exothermic.

Lastly, the reaction, NaCl + HC2H5OH does not occur so we mark "no reaction". We are told that the tube is not hot but we don't know the initial temperature of the tube or if it was colder than it's initial temperature so we can not make any inference regarding whether the reaction is endothermic or exothermic.

Learn more: brainly.com/question/11902331

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2 years ago

Write the complete symbol, including mass number and atomic number, for each atom.contains 28 protons and 30 neutrons :a. ^{58}_

mote1985 [20]

The complete question is

Write complete symbols, including mass number and atomic number, for atoms with the following characteristics

a. Contains 28 protons and 30 neutrons

b. Contains 22 protons and 21 neutrons

c. Contains 15 electrons and 19 neutrons

d. Oxygen atom with 10 neutrons.

e. Chromium atom with a mass number of 54

Answer:

Symbol : Ni Mass number: 58 Atomic number : 28

Symbol : Ti Mass number: 43 Atomic number : 22

Symbol : P Mass number: 34 Atomic number : 15

Symbol : O Mass number: 18 Atomic number : 8

Symbol : Cr Mass number: 54 Atomic number : 24

Explanation:

The atom have a proton number of 28 and neutron number of 30. The proton number is the same as the atomic number. The atomic number of this element is 28. The mass number is the sum of proton and neutron. Therefore, the mass number is 28 + 30 = 58 The symbol with atomic number of 28 is Ni.

The proton number is same as the atomic number. That means a proton number of 22 is the same as atomic number of 22. The mass number is the sum of proton and neutron which is 22 + 21 = 43. The symbol is Ti.

Proton number is equal to electron number for an electronically neutral atom. The atomic number is 15. The mass number is 15 + 19 = 34. The symbol is P.

The oxygen atom has an atomic number of 8. The mass number is 8 + 10 = 18. The symbol is O.

Chromium atom has an atomic number of 24. The mass number is 54. The symbol is Cr.

3 0

3 years ago