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hoa [83]
3 years ago
13

The boiling point of a solution with a non-volatile solute is higher than that of the pure solvent . True or false

Chemistry
1 answer:
RUDIKE [14]3 years ago
6 0
True because
 it is
.......
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What is the name of the people who hid the Dead Seas Scrolls. When did they live at Qumran?
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It was named the Qumran seas scrolls.
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3 years ago
A tetraphenyl phosphonium chloride (TPPCl) powder (FW=342.39) is 94.0 percent pure. How many grams are needed to prepare 0.45 L
slega [8]

Answer:

5.41 g

Explanation:

Considering:

Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}

Or,

Moles =Molarity \times {Volume\ of\ the\ solution}

Given :

For tetraphenyl phosphonium chloride :

Molarity = 33.0 mM = 0.033 M (As, 1 mM = 0.001 M)

Volume = 0.45 L

Thus, moles of tetraphenyl phosphonium chloride :

Moles=0.033 \times {0.45}\ moles

Moles of TPPCl = 0.01485 moles

Molar mass of TPPCl = 342.39 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

0.01485\ g= \frac{Mass}{342.39\ g/mol}

Mass of TPPCl = 5.0845 g

Also,

TPPCl is 94.0 % pure.

It means that 94.0 g is present in 100 g of powder

5.0845 g is present in 5.41 g of the powder.

<u>Answer -  5.41 g</u>

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3 years ago
What type of cells are gametes?
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Answer:

Reproductive cells(also known as sex cells) are gametes.

Explanation:

Have a great day :)

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In the chemical reaction, calcium carbonate (CaCO3) was heated to form two new
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Answer: 10.99

Explanation: because you take the Cao 13.9 and take CO2 which is 10.99 and it makes 24.8 . Which is CaCO3.

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When a particle is moving fast it has a lot of kinetic energy in it. ?
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Random particle motion in liquids and gases is a difficult concept for in temperature, the particles move faster as they gain kinetic energy.

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