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xxTIMURxx [149]
3 years ago
7

Identify the best practices when storing and using drying agents in the lab.

Chemistry
1 answer:
IrinaVladis [17]3 years ago
7 0

Answer:

A. Close the drying agent container whenever it is not in active use.

C. Wrap the lid of the drying agent container with tape for storage.

Explanation:

Drying agents also known as desiccants are used in pharmaceutical, food and other manufacturing to keep substances dry. These drying agents are anhydrous and hygroscopic. The right usage of these products requires that they are always stored in an air-tight container.

When they are to be removed from a container containing a solvent, they are to be separated by filtration or decanting.

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A chemist dissloves 73 grams of sodium chloride (NaCl) in water. the final volume of the solution is 1,050 what is the molarity
Kryger [21]

Answer:

1.2

Explanation:

6 0
3 years ago
30.00 grams of H3PO4
Mekhanik [1.2K]

Answer:

Number of moles = 0.31 mol

Explanation:

Given data:

Mass of H₃PO₄ = 30.0 g

Number of moles = ?

Solution:

Formula:

Number of moles = mass/ molar mass

Molar mass of H₃PO₄ = 98 g/mol

Number of moles = 30.0 g / 98 g/mol

Number of moles = 0.31 mol

7 0
4 years ago
The liquid inside the cell is called
rodikova [14]

Answer:

The cytoplasm

Explanation:

Cytoplasm is the gelatinous liquid that fills the inside of a cell. It is composed of water, salts, and various organic molecules. Some intracellular organelles, such the nucleus and mitochondria, are enclosed by membranes that separate them from the cytoplasm.

Pls mark as brainliest

hope this helps:)

5 0
3 years ago
SHOW WORK
Katyanochek1 [597]

M
a
= 6.77M - the initial molarity (concentration)
V
a
= 15.00 mL - the initial volume
M
b
= 1.50 M - the desired molarity (concentration)
V
b
= (15.00 + x mL) - the volume of the desired solution
(6.77 M) (15.00 mL) = (1.50 M)(15.00 mL + x )
101.55 M mL= 22.5 M mL + 1.50x M
101.55 M mL - 22.5 M mL = 1.50x M
79.05 M mL = 1.50 M
79.05 M mL / 1.50 M = x
52.7 mL = x
59.7 mL needs to be added to the original 15.00 mL solution in order to dilute it from 6.77 M to 1.50 M......



Also you kinda cute what’s up :)
4 0
3 years ago
Explain the solute and the solvent in a solution
romanna [79]

Answer:

a solute is a substance that is dissolved in the solvent (liquid)

a solvent is a substance that dissolves a solute (solid)

a solution is the mixture of both the solute and solvent forming uniform mixture

5 0
3 years ago
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