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Irina18 [472]
3 years ago
7

Calculate the molarity of the solution.

Chemistry
2 answers:
Nostrana [21]3 years ago
8 0

Answer:

Molarity of the solution = 21.6 M

Explanation:

<u>Given:</u>

Moles of CH#COOH = 4.32*10^2 moles

Volume of water = 20.0 L

<u>To determine:</u>

Molarity of the solution

<u>Explanation:</u>

Concentration of a given solution can be expressed in terms of Molarity which refers to the moles of solute per liter volume of the solution

Molarity = \frac{moles}{Volume\  in\  L}

For the given CH3COOH solution:

Molarity = \frac{4.32*10^{2}\ moles }{20.0\ L} =21.6 moles/L

Ainat [17]3 years ago
4 0
Molarity = moles of solution/ liter of solution
4.32x10^2/20
432/20=
21.6 M
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Answer:

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Explanation:

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3 years ago
A ground water tank has its height 2m. Calculate the pressure at its bottom when it is completely filled with water.​
Law Incorporation [45]

The pressure at the bottom : 19600 N/m²

<h3>Further explanation</h3>

Given

A ground water tank has its height 2m

Required

The pressure at its bottom

Solution

Hydrostatic pressure is the pressure caused by the weight of a liquid.  

The weight of a liquid is affected by the force of gravity.  

The hydrostatic pressure of a liquid can be formulated:  

\large{\boxed{\bold {P_h ~ = ~ \rho.g.h}}

Ph = hydrostatic pressure (N / m², Pa)  

ρ = density of liquid (kg / m³)  

g = acceleration due to gravity (m / s²)  

h = height / depth of liquid surface (m)  

ρ = density of water (kg / m³) = 1000

g = acceleration due to gravity = 9.8 m/ sec²

The pressure

\tt P=1000\times 9.8\times 2=19600~N/m^2

6 0
3 years ago
The number of neutrons in the nucleus of an atom can be determined by
Masteriza [31]
Option no. 2 subtracting the atomic number from the mass number

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5 0
3 years ago
Given 2.14g of B2H6
Shkiper50 [21]

Answer:

(A) is 0.0773 mol B2H6

(C) is 2.79 x 10^23 H atoms

Explanation:

Questions (A) and (B) are the same.

2.14 g B2H6 x (1 mol B2H6/27.668g B2H6) = 0.0773 mol B2H6 (A)

<u>27.668 is the molar mass of B2H6 calculated from the period table: </u>

(2 x 10.81) + (6 x 1.008) = 27.668

1.008 is the mass of H and 10.81 is the mass of B

(C)

0.0773 mol B2H6 x (6 mol H/ 1 mol B2H6) x (6.022 x 10^23 H atoms/1 mol H)

= 2.79 x 10^23 hydrogen atoms

Further Explanation:

  • For every 1 mol of B2H6, there are 6 moles of H (indicated by the subscript)
  • 6.022 x 10^23 is Avogrado's number and it equals to 1 mol of anything
  • Avogrado's number can be in units of atoms, molecules, or particles
5 0
3 years ago
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Answer:

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Explanation:

See attachment.

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2 years ago
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