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3 years ago

What is the SI Unit used to measure the temperature of a substance?

Chemistry

2 answers:

Marizza181 [45]3 years ago

6 0

Answer: The correct answer is Kelvin

Explanation:

Temperature of the substance is defined as the intensity of heat that a substance contains. It may also be defined as the degree of hotness or coldness.

S.I. unit stands for standard international unit.

Temperature is measured in various units such as Degree Celsius, Degree Fahrenheit and Degree kelvin.

The S.I. unit of temperature is Degree Kelvin.

Gram is the S.I. unit of Mass of the substance.

Mole is the S.I. unit of amount of substance.

ser-zykov [4K]3 years ago

5 0

Answer:

kelvin

Explanation:

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3 years ago

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A naoh (aq) stock solution was created by dissolving 3.88 g naoh in water to create a 100.00 ml solution. what is the concentrat

Bess [88]

0.0381g/mL will be concentration of this solution

The ratio of a solute—a substance that dissolves—to a solvent—a substance that does not dissolve—determines the concentration of a solution in chemistry. C = m/V, where C is the concentration, m is the mass of the solute dissolved, and V is the overall volume of the solution, is the accepted formula.

How to reach the solution?

First find for the density of NaOh which is 2.13 g/cm3

3.88 ÷ 2.13 = 1.82mL

100mL + 1.82mL = 101.82mL

3.88 ÷ 101.82mL = 0.0381g/mL

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The extremely adaptable chemical sodium hydroxide (NaOH), sometimes referred to as caustic soda or lye, is employed in a range of manufacturing processes. A byproduct of the manufacturing of chlorine is sodium hydroxide. Numerous items that are used on a daily basis, including paper, metal, drain and oven cleansers for industry, soap, and detergents, are made with sodium hydroxide.

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1 year ago

A vessel of volume 100ml contains 10% of oxygen and 90% of an unknown gas. The gases diffuses in 86 second through a small hole

swat32

The molecular weight of unknown gas : 23.46 g/mol

<h3>Further explanation</h3>

Given

A vessel contains 10% of oxygen and 90% of an unknown gas.

diffuses rate of mixed gas = 86 s

diffuses rate of O₂ = 75 s

Required

the molecular weight of unknown gas (M)

Solution

The molecular weight of mixed gas :(M O₂=32 g/mol)

$\tt 0.1\times 32+0.9\times M=3.2+0.9M$

Graham's Law :

$\tt \dfrac{r_{O_2}}{r_{mixed~gas}}=\sqrt{\dfrac{M_{mixed}}{M_{O_2}} }\\\\\dfrac{75}{86}=\sqrt{\dfrac{3.2+0.9M}{32} }\\\\0.76=\dfrac{3.2+0.9M}{32}\\\\24.32=3.2+0.9M\\\\21.12=0.9M\rightarrow M=23.46~g/mol$

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3 years ago

Which of the following expands to fill the container it is in, but can be compressed to a smaller volume when pressure is applie

Andrew [12]

Oxygen gas expands in a container and when pressure is applied it liquifies and occupies a smaller volume

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3 years ago

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