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posledela
2 years ago
8

1. A container holds four times as many moles of CO2 as O2. If the total pressure in the container is 20. atm,

Chemistry
1 answer:
Hitman42 [59]2 years ago
7 0

Answer:

Partial pressure of CO2 = 16 atm

Explanation:

Total number of moles of gases = 4+1 = 5 moles

Mole fraction of CO2 = 4/5

Partial pressure of CO2 = mole fraction of CO2 × total pressure

Partial pressure of CO2 = (4/5) × 20

Partial pressure of CO2 = 16 atm

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Equation balancing
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<u>Answer:</u>

<u>For a:</u> The balanced equation is 2S(s)+3O_2(g)\rightarrow 2SO_3(g)

<u>For c:</u> The balanced equation is 2NaOH(s)+H_2SO_4(aq)\rightarrow Na_2SO_4(aq)+2H_2O(l)

<u>Explanation:</u>

A balanced chemical equation is one where all the individual atoms are equal on both sides of the reaction. It follows the law of conservation of mass.

  • <u>For (a):</u>

The given unbalanced equation follows:

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To balance the equation, we must balance the atoms by adding 2 infront of both S(s) and SO_3 and 3 in front of O_2

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2S(s)+3O_2(g)\rightarrow 2SO_3(g)

  • <u>For (b):</u>

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The given equation is already balanced.

  • <u>For (c):</u>

The given unbalanced equation follows:

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To balance the equation, we must balance the atoms by adding 2 infront of H_2O(l)

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  • <u>For (d):</u>

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Answer:

Explanation:

The question is not complete, the cmplete question is:

Identify one type of noncovalent bond present in each solid.

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a. hydrogen bonds

b. ionic interactions

c. van der Waals interactions

d. hydrophobic interactions

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1) Table salt

b. ionic interactions

Ionic bond are formed between atoms with incomplete outermost shell. Some atoms add electrons to their outermost shell to make the shell complete hence making it a negative ion while some atoms loses their electron to make the outermost shell complete becoming a positive ion. In NaCl, sodium (Na) has 1 electron in its outermost shell which it transfers to Cl which has 7 electrons in the outermost shell. Hence after the bonding the outermost shell of the atoms become complete.

2) Graphite

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