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stellarik [79]
3 years ago
6

How are magnification and resolutions different

Chemistry
1 answer:
tino4ka555 [31]3 years ago
4 0
Magnification is the ability to make small objects seem larger, such as making a microscopic organism visible. Resolution is the ability to distinguish two objects from each other.
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Chlorine melts at 172 K. What is chlorine’s melting point in °C?
Alexxx [7]
<span> -101.5 celcius and exactly that

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4 years ago
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What would you expect to happen if you raised the temperature of the water to 85°C? Check all that apply.
Mumz [18]
I don't know your options but maybe this bit of information will help, the boiling point of water is 212<span>°</span>F so at that temperature it will likely just start evaporating 
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When 240 mg of a certain molecular compound X are dissolved in 35.0 g of dibenzyl ether ((C6H5CH2)2O), the freezing point of the
DedPeter [7]

Answer: MM = 16.55 g/mol

Explanation: <u>Freezing</u> <u>point</u> <u>depression</u> is a phenomena that explains why adding a solute to a solvent decreases the solvent freezing point: when a substance begins to freeze, its molecules slows down and rearrange itself forming a solid. If a solute is added, the molecules from the solvent interfere in the formation of the solid. To guarantee the transformation, the solution has to cooled down even more.

Freezing point and molality concentration is related by

\Delta T=T_{f}_{(solvent)}-T_{f}_{(solution)}=K_{f}.m

where

ΔT is freezing point depression

T_{f}_{(solvent)} and T_{f}_{(solution)} are freezing point of solvent and solution, respectively

K_{f} is freezing point depression constant

m is molality concentration

<u />

Dibenzyl ether is the solvent and has the following properties: K_{f}= 6.27 and T_{f} = 3.6°C.

Molality concentration is

m=\frac{T_{(solvent)}-T_{(solution)}}{K_{f}}

m=\frac{3.6-1}{6.27}

m = 0.415

<u>Molality</u> <u>concentration</u> is moles (n) of solute dissolved in a mass, in kilogram, of solvent.

m=\frac{moles}{mass(kg)}

n = m(mass of solvent in kg)

n = 0.415(0.035)

n = 0.0145

<u>Molar</u> <u>mass</u> (M) is the weight of one sample mole and can be calculated as

n=\frac{m}{M}

M = \frac{m}{n}

m in grams

Molar mass of compound X is

M=\frac{0.24}{0.0145}

M = 16.55

<u>Molar mass of molecular</u><u> compound X is 16.55g/mol</u>

3 0
3 years ago
2. Which of the following is not a physical property of water? It is a colorless liquid. It is composed of hydrogen and oxygen.
S_A_V [24]

The correct answer is C. Sugar dissolves in it

Hope this helps

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7 0
3 years ago
How many moles of mercury are in 23.79 grams of mercury?
Kay [80]

Answer:

0.1186mol Hg

Explanation:

To calculate the number of moles using the mass we divide the mass by the molar mass.

23.79g ÷ 200.59g/mol = 0.1186mol Hg

6 0
4 years ago
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