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3 years ago

If the temperature changes by 100k by how much does it change in °c?

Chemistry

1 answer:

telo118 [61]3 years ago

3 0

Answer:

-173.15°C

Explanation:

Given data:

Temperature changes = 100 K

Temperature changes in degree Celsius = ?

Solution:

Kelvin and degree Celsius both are units of temperature.

In order to convert the degree Celsius to kelvin following equation is used.

Temperature in degree Celsius +273.15

For example;

100°C to kelvin = 100+273.15 = 373.15 K

To convert the kelvin into degree Celsius:

100K - 272.15 = -173.15°C

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Two chemist are trying to determine if their water sample is a mixture or pure substance. In their investigation they first filt

Effectus [21]

The correct answer is option B. Dirty water is a mixture of solid particles and liquid. It is both a mixture and pure substance.

The dirty water sample has both gravel and liquid water in it. After filtration the gravel is removed so the water sample looks clearer than before filtration. Liquid water is a pure substance because it is a compound that is made up of elements hydrogen and oxygen. Now the gravel is only physically combined with the liquid water, thus giving the water sample properties of a mixture. And like any mixture, gravel is physically separated through filtration from the liquid water.

Thus the water sample of the chemists is both a mixture and pure substance.

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4 years ago

The sum of the protons and neutrons in an atom equals the ____. *

Anna11 [10]

Answer:

The sum of the number of protons and neutrons in an atom is called the mass number.

Explanation:

Carbon-12 has 12 protons and 12 neutrons. 12+12=24 , so the mass number of C-12 is 24..

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3 years ago

In an atom, where are electrons with less energy most likely located

Marianna [84]

Please let me know when you find out, i need this question answered as well

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3 years ago

Initial mass of triphenyl methanol in g = 0.220g Initial volume of 33% HBr solution in ml = 0.60 ml Find mas of triphenyl bromid

tensa zangetsu [6.8K]

Answer:

0.792g of triphenyl bromide are produced.

Explanation:

The reaction of triphenyl methanol with HBr is:

triphenyl methanol + HBr → Triphenyl bromide.

Reaction (1:1), 1 mole of HBr reacts per mole of triphenyl methanol.

To know the mass of triphenyl bromide assuming a theoretical yield (Yield 100%) we need to find first limiting reactant:

Moles triphenyl methanol (Molar mass: 260.33g/mol) =

0.220g × (1mol / 260.33g) = 8.45x10⁻³ moles Triphenyl methanol

Moles HBr (Molar mass: 80.91g/mol; 33%=33g HBr/100mL) =

0.60mL ₓ (33g / 100mL) ₓ (1mol / 80.91g) = 2.45x10⁻³ moles HBr

As amount of moles of HBr is lower than moles of triphenyl methanol, HBr is limiting reactant.

As HBr is limiting reactant, moles produced of triphenyl bromide = moles HBr = 2.45x10⁻³ moles

As molar mass of triphenyl bromide is 323.2g/mol, mass of triphenyl bromide is:

2.45x10⁻³ moles × (323.2g / mol) =

<h3>0.792g of triphenyl bromide are produced.</h3>

5 0

4 years ago

Hydrogen gas is most important in our daily life

Ann [662]

Answer:

That's true. What are you asking?

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3 years ago

If the temperature changes by 100k by how much does it change in °c?​

If the temperature changes by 100k by how much does it change in °c?