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Leokris [45]
2 years ago
10

10.9010 has how many significant figures

Chemistry
2 answers:
inna [77]2 years ago
5 0

It has six significant figures. You count the 0s that come at the end because it shows you it wasn't rounded.

MAXImum [283]2 years ago
5 0

The number 10.9010 has six significant figures.

If a zero is between two numbers, it is counted as a significant figure.

For example: 101 would have 3 significant digits.

If a zero comes after a decimal point, it is counted as a significant figure.

For example: 1.00 would have 3 significant figures.

In this case, all of the zeroes in the number 10.9010 would count as significant figures and there would be 6 significant figures present.

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A liquid has an empirical formula CCl2, and a boiling point of 1 21 oC. When vapourised, the gaseous compound has a density of 4
Darya [45]

Based on the data given, the molar mass of the gas is 165.5 g/mol while the molecular weight of the gas is 165.5 amu

<h3>How can molar mass of a gas be obtained from density, temperature and pressure?</h3>

The molar mass of a gas can be obtained from density, temperature and pressure using the formula below:

  • molar mass = density × molar gas constant × temperature/pressure

Molar gas constant, R = R = 0.082 L.atm/mol/K.

Temperature = 150 °C = 423 K

Pressure = 785 torr = 1.033 atm

density = 4.93 g/L

molar mass of gas = 4.93 × 0.082 × 423/1.033

molar mass of gas = 165.5 g/mol

Then, molecular weight of the gas = 165.5 amu

Therefore, the molar mass of the gas is 165.5 g/mol while the molecular weight of the gas is 165.5 amu

Learn more about molar mass of a gas at: brainly.com/question/26215522

6 0
1 year ago
Entropy can be thought of as the degree of disorganization of a system.<br> TRUE<br> FALSE
Mice21 [21]

Answer:

True

Explanation:

The entropy of a system denoted by S is a thermodynamic function that increases in value when there are more ways to arrange the particles in the system. Some spontaneous chemical processes are entropy driven. An increase in entropy is said to drive the dissolution of ionic salts along with the evaporation of water are related to the spreading out of energy.

The entropy of a system can be taken as a measure of disorder of a system. In a spontaneous chemical process, the entropy of the universe is said to increase. ΔSunivu>0. Making the answer true.

7 0
2 years ago
Please help
Mashutka [201]

Answer:

Potential

Explanation:

The answer is potential!

6 0
1 year ago
Read 2 more answers
Circle the letter next to each sentence that is true concerning the compressibility of gases. a. The large relative distances be
Anuta_ua [19.1K]

Answer:

The large relative distances between particles in a gas means that there is considerable empty space between the particles.

The assumption that particles in a gas are relatively far apart explains gas compressibility.

Compressibility is a measure of how much the volume of matter decreases under pressure.

Energy is released by a gas when it is compressed

Explanation:

The kinetic molecular theory establishes that gases are composed of molecules. These molecules of gas are far apart from each other hence there is a considerable empty space between the gas molecules. As a result of these empty spaces between gas molecules, it is possible to compress a gas.

Compressibility is defined as a measure of how much the volume of matter decreases under pressure. When a gas is compressed, work is done on the gas and energy is evolved hence the gas heats up.

6 0
3 years ago
Give an example of an element and a compound. How do elements and compounds differ?
Talja [164]

Answer:

Element: C (carbon)

Compound: CO2 (carbon dioxide)

Explanation:

You can differ the compouns to the elements because the compounds are a combination of elements. The elements are those that belong to the periodical table.

I hope I help you.

4 0
2 years ago
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