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Maru [420]
2 years ago
7

What is Dalton's law of partial pressure

Chemistry
2 answers:
guapka [62]2 years ago
8 0

Answer:

Dalton law of partial pressure states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of partial pressures of the individual gases.

Explanation:

Pt=P1+P2

Leto [7]2 years ago
7 0
  • If 3 substances be x,y,z

\\ \tt\longmapsto P_{net}=P_x+P_y+P_z

Where

\\ \tt\longmapsto P_x=\dfrac{n_xRT}{V}

\\ \tt\longmapsto P_y=\dfrac{n_yRT}{V}

\\ \tt\longmapsto P_z=\dfrac{n_zRT}{V}

  • P is partial pressure
  • n is number of moles
  • V is volume
  • T is temperature
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Lubov Fominskaja [6]

Answer:

D

Explanation: iIt is a neutralization reaction and neutralization reaction is a reaction between and acid and base to give salt and water. In the question above, Ca(OH)2 is the base and HCl is the acid, Ca(Cl)2 is the salt and H2O.

5 0
3 years ago
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HELPPPPP PLEASE!!!
Salsk061 [2.6K]
C I think it’s C I’m semi guessing
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2 years ago
6. A 25.0-mL sample of potassium chloride solution was found to have a mass of 25.225 g.
Morgarella [4.7K]

Answer:

6. a. 5.53 (m/m) %; b. 0.7490M

7. 0.156M

Explanation:

6. In the solution of KCl, there are 1.396g of KCl in 25.225g of solution. As mass/mass percent is:

Mass solute / Mass solution * 100

The mass/mass percent of KCl is:

a. 1.396g KCl / 25.225g solution * 100

5.53 (m/m) %

b. Molarity is moles of solute per liters of solution:

<em>Moles KCl -Molar mass: 74.55g/mol-:</em>

1.396g KCl * (1mol / 74.55g) = 0.018726 moles KCl

<em>Volume in liters: 25mL = 0.025L</em>

Molarity:

0.018726 moles KCl / 0.025L = 0.7490M

7. 0.90% means 0.90g of NaCl in 100g of solution:

<em>Moles NaCl -Molar mass: 58.44g/mol-:</em>

0.90g NaCl * (1mol / 58.44g) = 0.0154 moles NaCl

<em>Volume in Liters:</em>

100g * (1mL / 1.01g) = 99mL = 0.099L

Molarity:

0.0154 moles NaCl / 0.099L =

0.156M

4 0
3 years ago
Q2. Which of these is a mixture?
iVinArrow [24]
The answer is sodium chloride
7 0
3 years ago
Identify the true statement(s) about the valence bond theory. 1. The strength of a bond depends on the amount of overlap between
Verdich [7]

Answer:

The strength of a bond depends on the amount of overlap between the two orbitals of the bonding atoms

Orbitals bond in the directions in which they protrude or point to obtain maximum overlap

Explanation:

The valence bond theory was proposed by Linus Pauling. Compounds are firmed by overlap of atomic orbitals to attain a favourable overlap integral. The better the overlap integral (extent of overlap) the better or stringer the covalent bond.

Orbitals overlap in directions which ensure a maximum overlap of atomic orbitals in the covalent bond.

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3 years ago
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