2 years ago

What is the total number of protons and electrons in one mole of hydrogen gas?

Chemistry

1 answer:

german2 years ago

4 0

1 proton and-1 electrons and 0 neutron

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vfiekz [6]

Answer:

AU9NJ-BLVHV-TCLJS-54YTB

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3 years ago

A 0.98 gram sample of a volatile liquid was heated to 348 k. the gas occupied 265 ml of space at a pressure of 0.95 atm. what is

arlik [135]

Answer:

The molecular weight is $Z = 111.2 \ g/mol$

Explanation:

From the question we are told that

The mass of the sample is $m = 0.98 \ g$

The temperature is $T = 348 K$

The volume which the gas occupied is $V = 265 \ ml = 265 *10^{-3} L$

The pressure is $P = 0.95 \ atm$

Generally from the ideal gas equation we have that

$PV = n RT$

Here n is the number of moles of the gas while the R is the gas constant with value $R = 0.0821 \ atm \cdot L \cdot mol^{-1} \cdot K^{-1}$

$n = \frac{PV}{ RT}$

=> $n = \frac{ 0.95 * 265 *10^{-3} }{ 0.0821 * 348}$

=> $n = 0.00881 \ mol$

Generally the molecular weight is mathematically represented as

$Z = \frac{m}{n}$

=> $Z = \frac{0.98 }{0.00881}$

=> $Z = 111.2 \ g/mol$

8 0

3 years ago

Describe the difference beetween an extensive and intesive property

olasank [31]

Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance's chemical identity.

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3 years ago

The first stage of aerobic respiration is a series of biochemical reactions called the Calvin cycle.

Marina CMI [18]

Answer:

The answer is indeed true

Explanation:

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3 years ago

How mant atoms are in 3N2

geniusboy [140]

Explanation:

you times 3 and 2 to get six.

8 0

3 years ago

Read 2 more answers