How many moles are there in a 122 gram sample of nickel (Ni)?
7.16 x 103 moles
6.22 mol
2.08 mol
0.481 mol

How Many Moles Are There In A 122 Gram Sample Of Nickel (Ni)?7.16 X 103 Moles6.22 Mol2.08 Mol0.481 Mol

Answers

Answer 1
the molecular weight of nickel is 58.69 g/mol. thus in a 122 gram sample of nickel there are 122/58.69=2.08 moles of nickel.
Answer 2

The atomic mass of nickel is 58.71 gm and the given mass of nickel is 122 gm. Therefore, 2.08 moles are present in a 122-gram sample of nickel.

Nickel:

The atomic number of nickel is 28.The symbol of nickel is Ni.Density of a nickel 8.908 g/cm3.It is a d block element.It belongs to group 10 and period 4.It is also called transition metal.It is a metal and is located between groups 2 and 3.

Mass of nickel given: 122 grams.

Atomic mass of nickel: 58.71 g mol

Number of moles = Mass / molar mass

                             = 122/ 58.71

                              = 2.078

                              = 2.08 moles.

The atomic mass of nickel is 58.71 gm and the given mass of nickel is 122 gm. Therefore, 2.08 moles are present in a 122-gram sample of nickel.

To learn more about nickel, refer to the link:

https://brainly.com/question/3542561

#SPJ2


Related Questions

List the elements that make up the compound copper sulfate

Answers

The elements that make up copper sulfate are copper and sulfate

Which part of the atom can be transferred from one atom to another to form
ions?
a. Protons
b. Neutrons
c. Valence Electron
d. Nucleus

Answers

Answer:

Explanation:  Valance Electron

Please help me how do i solve this

Answers

Answer:120

Explanation:2gfdxxfgngfnf

how many sig figs are in 0.0093

Answers

Answer:

there are two significant figures

Explanation:

Answer:

there are two

Explanation:

because the zeros dont count

Use the model to answer the question.
Which element symbol actually represents the model?

Plz answer

Answers

Answer:

B

Explanation:

Boron has 5 protons.

An isotope of Cesium -137 has a half-life of 30 years. If 1.0 g of Cesium – 137 disintegrates over a period of 60 years, how many grams of Cesium- 137 would remain?

Answers

Answer:

Explanation:

Radioactive decay follows the equation:

Ln [A] = -kt + ln [A]₀

Where [A] is amount of isotope after time t: Our incognite,

k is rate constant: ln 2 / Half-life = 0.0231 years⁻¹

t are 60 years

[A]₀ is initial amount of isotope: 1.0g

Replacing:

Ln [A] = -kt + ln [A]₀

Ln [A] = -0.0231 years⁻¹*60 years + ln 1.0g

ln [A] = -1.386

[A] = 0.25g

If 150 G of war started burning 300 G of where as was left behind how many grams of CO2 gas is released

Answers

Answer:

geruow0irghvn3p0unhie0ghik

Explanation:

Momentum is mass times

A. acceleration
B. velocity
C. distance

Answers

B. velocity

This is the answer

State the number of degrees of longitude that separates New York City from Denver, Colorado between these two cities.

Answers

Answer:

The number of degrees of longitude that separates New York City from Denver, Colorado is 30.9843 degrees longitude

Explanation:

The longitude of New York City is 74.0060° W

The latitude of New York City is 40.7128° N

The longitude of Denver, Colorado is 104.9903°W

The latitude of Denver Colorado is 39.7392°N

Therefore, the difference the number of degrees of longitude that separates New York City from Denver, Colorado is 104.9903 - 74.0060 = 30.9843°.

The density of lead is 11.4g/cm3. What volume, in ft3, would be occupied by 10.0 g of lead?

Answers

Answer:

The volume is 3.09 ft^3.

Explanation:

The formula for volume is mass divided by density. 10.0 g / 11.4 g/cm^3 = 0.87719. Converted to cubis foot is 3.09 ft^3. I hope this helps you.

Is vacuole a plant or animals cell

Answers

Answer:

plant

Explanation:

let me know if correct

Which of the following best describes a hypothesis?
A. An explanation that is supported by scientific data
B. A proven explanation for experimental results
c. A possible answer to a scientific question
D. A question about the natural world
please help i will give brainliest

Answers

It’s C because hypothesis is what u think would happen in the experiment
It is most definitely C, A hypothesis is a prediction before an experiment occurs

Dating of Rock Layers
Answer all 12 questions relating to the images below
English (US)
100

Answers

Answer:

I'm sorry, we need the image to answer  it.

Explanation:

How many grams are equal to 0.11 mole of copper(I) chromate?

Answers

Mass of Copper(I) chromate( CuCrO₄) = 19.75 g

Further explanation

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

[tex]\tt \large{\boxed{\bold{mol=\dfrac{m(mass)}{MW(molecular~weight)}}}[/tex]

0.11 mole of Copper(I) chromate( CuCrO₄) ⇒ MW=179.54 g/mol, so mass :

[tex]\tt mass=mol\times MW\\\\mass=0.11\times 179.54\\\\mass=19.75~g[/tex]

Which of these changes to a modern lifestyle would promote the
development of more-sustainable practices in the world food system?
O A. Switching from chicken to beef
B. Eating fewer processed foods
O C. Buying tropical fruits
D. Eating fresh vegetables year-round

Answers

I think it’s B. At least that’s what makes sense to me

Eating fewer processed foods would promote the development of more-sustainable practices in the world food system.

What are Processed food?

This is the food which has undergone some degree of alteration during preparation such addition of preservatives etc.

Eating less of it will ensure that more sustainable practices in the world food system are promoted.

Read more about Processed food here https://brainly.com/question/21201084

#SPJ2

Niels Bohr’s model of the atom helped to explain

Answers

Answer:

a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities. Electrons should move around the nucleus but only in prescribed orbits.

Explanation:

how do i caculate velocity

Answers

Answer:

Velocity Equation in these calculations:

Final velocity (v) of an object equals initial velocity (u) of that object plus acceleration (a) of the object times the elapsed time (t) from u to v.

Explanation:



In lab you reacted 60 grams of propane (C3H8) with 13 grams of oxygen gas (O2). Your

reaction made 63 grams of water (H2O). The reaction is shown below:

How much carbon dioxide (CO2) is released into the air?

C3H8 + 5O2 ------> 3CO2 + 4H2O

10 g

73 g

120 g

1368

Answers

Answer:

120g

Explanation:

Based on the reaction, when 1 mole of propane and 5 moles of oxygen react, 3 moles of CO2 and 4 moles of H2O are produced. The ratio of production is 3 moles of CO2 per 4 moles of H2O.

Thus, we need to convert mass of water to moles using its molar mass:

Moles H2O (Molar mass: 18g/mol):

63g H2O * (1mol / 18g) = 3.5 moles H2O

Converting to moles of CO2:

3.5 moles H2O * (3 moles CO2 / 4 moles H2O) = 2.625 moles CO2

Mass CO2 (Molar mass: 44g/mol):

2.625 moles CO2 * (44g / mol) = 115.5g of CO2 are released

120g

Hydrogen bond is not formed by 1) oxygen 2) nitrogen 3) chlorine
PLEASE HELP!!!

Answers

Answer:

Input work is the work done on a machine as the input force acts through the input distance. This is in contrast to output work which is a force that is applied by the body or system to something else. Output work is the work done by a machine as the output force acts through the output distance.Jan 15, 2020 bahsgsh bvshgs d hg

1. What part of the human body has the same role as the power source in a computer?

2.What part of the human body has the same role as the keyboard or the mouse on a computer?

Answers

Answer:

The heart

Hand

Explanation:

The part of the human body that has the same role as the power source in a computer is the heart. A power source in a computer provides energy that powers the whole system.

The human heart provides the pumping action for the circulatory system. Just like current passes through wires in a computer by energy from the power source, the human heart pumps blood throughout the body in a like manner. Without the pumping action of the heart, the human body is dead.

Also, keyboard and mouse are input devices. They are used to give instruction and perform certain tasks on the computer system.

The human body can also carryout tasks by using the hand. Objects are moved from one place to another just as you drag an icon using the mouse. We type word processors using information from the keyboard, also, we are able write using pen on paper.

What will happen to the flow of blood in blood vessels (pulse) if heart beat rate increase

Answers

Answer:

"Low levels of the hormone epinephrine, also called adrenaline, cause blood vessels to relax and widen. High levels of this same hormone, along with the hormone norepinephrine, cause the blood vessels to narrow and the heart rate to rise, increasing blood pressure."

Explanation:

Why is NCl3 not soluble in water?

Answers

Answer:

Explanation:

NCl3 does not dissolve in water because it is a nonpolar molecule which is different with water. NCl3 is nonpolar due to the difference in electronegativities between 3 atoms of Cl and 1 atom if N2.

Answer:

A polar solute dissolves into a polar solvent and a non-polar compound dissolves into a non-polar solvent, this rule is known as "like dissolves like".

Which of the following subatomic particles are found surrounding the nucleus and have a negative charge?

F negatrons

G neutrons

H protons

J electrons

Answers

Answer:

J electrons

Explanation:

Electrons are the negatively charged subatomic particles that surrounds the nucleus of an atom.

Electrons occupy the bulk volume of an atom. These particle was discovered by J.J ThomsonThey found orbiting the extra-nuclear space of every atom. The nucleus is made up of protons and neutrons.

write the complete balanced equation for the decomposition of AI(CIO3)3.

Answers

Answer:

2AL(ClO3)3 → 2ALCl3 + 9O2

Explanation:

After pollen grows on a tube down the style,___

Answers

Answer:

as soon as the pollen reaches the stigma after the pollen grain descends down the style when the pollen tube grows into the ovule when the seed germinates

Explanation:

6H2 represents how many atoms of hydrogen?

Answers

Answer:

i think its 12, but i'm not 100% sure

Explanation:

1. Why is soil erosion relatively less in dense forests as compared to barren, open fields?

Answers

Because the deep roots of big trees hold the soil and don't let it slip away simply by rain or wind.

Answer:

the roots of the trees keep the soil in place opposed to a barren landscape that has little to no plants to keep the soil in place

hope this helps (╹ڡ╹ )

Directions: Read through each scenario and identify the independent variable, dependent variable, and the control.

Question 1

1 pts

Rob is in charge of waxing the floor at the local mall. He wants to test a new brand of floor wax called

Squeaky Clean. Rob waxes 20 floor tiles with Squeaky Clean and 20 tiles with the original wax brand.

After one week he counts the number of scratches on the floor. What is the independent variable?

number of floor scratches

brand of floor wax

20 tiles with original brand wax

Answers

Answer:

The correct answer is - brand of floor wax.

Explanation:

The independent variable is the variable or the factor in an investigation which is manipulated or change in the experiment and affects the dependent variable and produces a various result.

In this investigation, there are different brands of the floor was are the independent variable as they are changed to see the effect on the scratches on the floor on 20 tiles for each brand.

Please Help!!!

Which of the following is not a good indication that a chemical change has occurred?
A. The formation of gases
B. A change in color
C. A scratched surface
D. The release heat or light​

Answers

Answer:

C.

Explanation:

What color are the stars on the diagram with the lowest surface temperatures?

Answers

Answer:

red supergiants is the answer

Other Questions
2. What number is equal to five units + three tenths? Circle the correct answer.0.530.355.33.55335 what is a synonym for audience a.lunchb.stagec.gymnasiumd.performers The length of a rectangle exceeds its width by 1inch and the area is 132 square inches. Whatare the length and width of the rectangle? 100 points!!! Has anyone done unit 5 test for AP World history?? Edge2020 Answers pls.. Will mark brainliest!!!! write one-hundred thousand (100,000) in scientific notation Every week, Hectors 20 hours earns $210.00. He earns a constant amount of money per hour. Part BWrite an equation that can be used to determine Hector's earnings, in dollars, m, for h hours of work. What do bacteria have in common with the cells of other living organisms? What is the slope of a line with the equation y = 5x + ? All of the following can interfere with the breakdown of organic waste material in the soil except:AmineralsNBsolventsplasticsDpesticides answer.1A DNA nucleotide consists of three smaller units.Which type of biomolecule represents one of thesesmaller units?A CarbohydrateB LipidC ProteinD Nucleic acid if a truck goes 30 kilometers in 30 minutes what is the average speed PWhat was the primary measurement used to determine if a film was a commercially successful blockbuster? 2. Count by 5 to complete thepattern.130, 35, 404,Pls helpppp Calculate the internal energy of a system (in kiloJoules) that absorbs 14.73 kJ while being compressed with a pressure of 1.54 atm from 5.72 L to 1.0 L. Answer to one decimal space. Suppose of sodium chloride is dissolved in of a aqueous solution of silver nitrate. Calculate the final molarity of chloride anion in the solution. You can assume the volume of the solution doesn't change when the sodium chloride is dissolved in it. Be sure your answer has the correct number of significant digits. -3\10d= -4\5 this is just so i can get answer ggggggggggggggggggg why is pluto no longer a planet? check picture! The meaning of docile can be determined by the... context clue. synonym atonym or explanation Which rhetorical element is included in this passage from President Lincoln's Second Inaugural Address?A. ethosB. themeC. logosD. thesis Consider the use of 1000-bit frames on a 1-Mbps satellite channel with a 270-ms delay. What is the maximum link utilization for, a. Stop-and-wait flow control? b. Continuous flow control with a window size of 7? c. Continuous flow control with a window size of 127?