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julsineya [31]
3 years ago
7

The partial pressure of a gas is a inversely proportional to the temperature of the gas. b. directly proportional to the volume

of the gas. c. always constant during a chemical reaction. d. directly proportional to the number of moles of the gas. e. proportional to the gas constant, R.
Chemistry
1 answer:
vlabodo [156]3 years ago
3 0

Answer:

d. directly proportional to the number of moles of the gas.

Explanation:

The formula for the partial pressure of a gas is written as -

P = n * P ( total )

P = partial pressure of the gas ,

n = mole fraction of the gas ,

P ( total ) = Total pressure of the mixture of gas .

Hence , from the above equation ,

the partial pressure is directly proportional to the mole fraction , i.e. , on increasing the number of moles of gas , the partial pressure increases .

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Answer:

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Explanation:

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Consider the following example:

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In this example HCl is Bronsted lowry acid it gives H⁺ while ammonia is Bronsted lowry base because it accept H⁺.

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A student is determining the density of an unknown metal with a mass of 32.56 g. The student partially fills a graduated cylinde
xenn [34]

Answer:

The metal is Tin (Sn)

Explanation:

The following data were obtained from the question:

Mass of metal = 32.56 g

Volume of water = 14.78 mL

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Next, we shall determine the volume of the metal. This is illustrated below:

Volume of water = 14.78 mL

Volume of water + metal = 20.44 mL

Volume of metal =..?

Volume of metal = (Volume of water + metal) – (Volume of water )

Volume of metal = 20.44 – 14.78

Volume of metal = 5.66mL

Next, we shall determine the density of the metal.

Density of a substance is defined as the mass of the substance per unit volume of the substance. Mathematically, the density of a substance is expressed as:

Density = Mass / volume

With the above formula, we can obtain the density of the metal as follow:

Mass of metal = 32.56 g

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Density =.?

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Density = 32.56g/5.66mL

Density of the metal = 5.75g/mL

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