How many moles are in 150g of argon gas?

Answers

Answer 1

Answer: Molar mass Argon = 39.948 g/mol

number of moles = mass solute / molar mass

n = 150 / 39.948

n = 3.7548 moles

hope this helps!

Related Questions

At STP, solid carbon can exist as diamond and graphite. Compared to the molecular structure and chemical properties of diamond, graphite has(1) a different molecular structure and different properties(2) a different molecular structure and the same properties(3) the same molecular structure and different properties(4) the same molecular structure and the same properties
Which statement describes a chemical proper of magnesium 1. Magnesium is malleable 2.Magnesium conducts electricity 3.Magnesium reacts with an acid 4.Magnesium has a high boiling point
Which property is best to use when determining the strength of an ionic bond in a solid? lattice energy conductivity hardness solubility
Carbon-14 has a half-life of 5,730 y. How much of a 144g sample of carbon-14 will remain after 1.719x10 ^4 y.
Classify the following change as physical or chemical: A match lights when struck.A. Physical change B. Chemical change

List three of Rutherford’s major achievements that helped earn him the title “Father of Nuclear Physics.”

Answers

The correct answer is:

discovered the necleusproposed the proton existencediscovered fusion reaction from fission

Explanation:

Rutherford (1871–1937) was subject for an extraordinary array of discoveries in the fields of radioactivity and nuclear physics. He identified alpha and beta rays, set forth the rules of radioactive decay, and recognized alpha particles as helium nuclei.In 1911, Rutherford realized that atoms not detached, they are managed by something else, a nucleus. He noticed that the preponderance of an atom's mass is contemplated at a very tiny point in the center where the nucleus was determined. The nucleus is a positive force enclosed by electrons which are negative free flying particles.

discovered the necleus
proposed the proton existence
discovered fusion reaction from fission

How many moles of lead (ii) chromate are in 51 grams of this substance? answer in units of mol?

Answers

Mass of lead (II) chromate is 51 g. The molecular formula is $PbCrO_(4)$ and its molar mass is 323.2 g/mol

Number of moles can be calculated using the following formula:

$n=(m)/(M)$

Here, m is mass and M is molar mass.

Putting the values,

$n=((51 g)/(323.1937 g/mol)=0.1578 mol$

Therefore, number of moles of lead (II) chromate will be 0.1578 mol.

Which of these statements is NOT TRUE? Scientists propose explanations that can be explained by examining evidence. Scientists propose explanations that can be explained by examining evidence. Science is an organized way to investigate, understand, and explain events in the natural world. Science is an organized way to investigate, understand, and explain events in the natural world. Scientists collect and organize information randomly, looking for patterns and connections between events. Scientists collect and organize information randomly, looking for patterns and connections between events. Science deals only with the natural world.

Answers

Answer:

The correct option is;

Scientist propose explanations that can be explained by examining evidence

Explanation:

A scientists makes an hypotheses based on possible natural processes to explain the origin and/or the nature of the characteristics of a natural observation. The scientist then source more data and information to put their hypotheses to test. Due to the fact that an hypotheses is based on observable processes and/or mechanisms, the given hypotheses can be further tested by other scientists through the use of their individually sourced data. From the result of the assessment, the hypotheses can be either accepted or rejected to enable the better clarification of the hypotheses when accepted or the development of a new hypotheses when rejected.

How do electrons populate atoms?

Answers

Electrons fill the electron orbitals (s, p, d, or f) starting from the lowest energy level going to the highest energy level. I hope this helps. let me know if you need more information such as what the

Arrange the following measurements, in seconds, from the greatest bias to the least bias. 6.63 ± 0.01 s, 6.6 ± 0.1 s, 6.52 ± 0.05 s, 6.4 ± 0.5 s

Answers

I understand here "bias" to be the uncertainty of measurements. So the order will be the following:

6.4 ± 0.5 s
6.6 ± 0.1 s,
6.63 ± 0.01 s,
6.52 ± 0.05 s,

(notice how the second number, the one behind the symbol ± gets smaller, as the bias gets smaller).

What is the cell potential?a. the difference in reduction potentials of the half-cells

b. the difference in oxidation potentials of the half-cells

c. the sum of reduction potentials of the half-cells

d. the sum of the oxidation of potentials of the half cells

Answers

The correct answer is the difference in reduction potentials of the half-cells.
E(cell)=E(cathode)-E(anode).

You can also think of it as the reduction potential of the cathode plus the oxidation potential of the anode since if you reverse the sign of the reduction potential you have the oxidation potential
example E(cathode)=0.7V and E(anode)=-1.2V. E(cell)=0.7V+1.2V=1.9V
(the reduction potential for the anode is -1.2V but the oxidation potential is 1.2V)

I hope this helps. Let me know if anything is unclear.

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A sample contains 6.25 percent parent isotope and 93.75 percent daughter isotopes. If the half-life of the parent isotope is 58 years, how old is the sample?