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BARSIC [14]
3 years ago
10

In potassium phosphate what is the percent composition of oxygen?

Chemistry
1 answer:
Alinara [238K]3 years ago
6 0

Answer:

The answer for this question is defenitely A

Explanation:

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A sample of gas occupies a volume of 27 mL at a temperature of 161K. What is the volume of the temperature if raised to 343K?
d1i1m1o1n [39]

Answer: The  volume is 57.52 mL if the temperature if raised to 343K.

Explanation:

Given: V_{1} = 27 mL,       T_{1} = 161 K

V_{2} = ?,        T_{2} = 343 K

According to Charles law, at constant pressure the volume of an ideal gas is directly proportional to temperature.

Formula used is as follows.

\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\\\frac{27 mL}{161 K} = \frac{V_{2}}{343 K}\\V_{2} = 57.52 mL

Thus, we can conclude that volume is 57.52 mL if the temperature if raised to 343K.

4 0
3 years ago
Drag each label to the correct location.
frozen [14]
Liquid —> gas = evaporation
solid —> liquid = melting
liquid —> solid = freezing
solid —> gas = sublimation
gas —> liquid = condensation
gas —> solid = deposition
3 0
3 years ago
Which of the following is a statement of Hess's law?
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Answer:

Letter C...........................

Explanation:

Letter C

5 0
3 years ago
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Find the volume of hydrogen gas formed when 1.5g of aluminum reacts with aq NaOH at 27 degrees Celcius.
soldier1979 [14.2K]

Answer:

1.33litres

Explanation:

number of moles of aluminum is 1.5/27

comparing mole ratio of between aluminum and hydrogen which is 1:1, the moles of hydrogen is also 1.5/27,

volume of hydrogen at 27 degrees Celsius (room temperature) is 1.5/27*24litres= 1.33 litres

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Convert 5 pounds and 10 ounces into ounces
igomit [66]
90 oz because 5lbs is equal to 80 oz (5*16=80) plus 10oz = 90
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