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Elena L [17]
3 years ago
5

What principle chemistry​

Chemistry
1 answer:
NNADVOKAT [17]3 years ago
8 0
Is this a question ?
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Define An Atom.<br>Ty!!!​
astra-53 [7]

Answer:

the basic unit of a chemical element.

Explanation:

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A thin sheet of aluminum can block _____.
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A rigid vessel contains water at 0.15 MPa (at 25 °C). The vessel is heated to the critical point of water. Calculate the fractio
pishuonlain [190]

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0.8078 Kg

Explanation:

Pressure of water = 0.15 MPa = 1.5 bar

At critical point of water ,temperature = 647 K=374°C

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P×V= m×R×T

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1.5 x 105 x 1 = m x 287 x 647

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the fraction of mass of liquid at 25°C.

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3 years ago
You can practice converting between the mass of a solution and mass of solute when the mass percent concentration of a solution
vfiekz [6]

Answer:

450. g of 0.173 % KCN solution contains 779 mg of KCN.

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Mass of the solution = m

Mass of the KCN in solution = 779 mg

Mass by mass percentage of KCN solution = 0.173%

(m/m)\%=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100

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450. g of 0.173 % KCN solution contains 779 mg of KCN.

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