what mass of copper is equivalent to 0.7moles?​

Answers

Answer 1
I hope thus equations help


1. How many atoms are in 6.5 moles of zinc?
1 mole = atomic mass (g)
6.5 moles 6.02 x 1023 atoms = 3.9 x 1024 atoms 1 mole
2. How many moles of argon are in a sample containing 2.4 x 1024 atoms of argon?
2.4 x 1024 atoms of argon 1 mole
6.02 x 1023 atoms
3. How many moles are in 2.5g of lithium?
2.5 grams Li 1 mole 6.9 g
4. Findthemassof4.8molesofiron.
4.8 moles 55.8 g 1 mole
= 4.0 mol
= 0.36 mol
= 267.84 g = 270g

1 mole = 6.02 x 1023 atoms 1 mole = atomic mass (g)
MASS (g)
1 mole = molar mass (look it up on the PT!)
MOLE
1 mole = 6.02 x 1023 atoms
PARTICLES (ATOM)
Two Step Problems:
1. What is the mass of 2.25 x 1025 atoms of lead?
2.25 x 1025 atoms of lead 1 mole 207.2g = 6.02 x 1023 atoms 1 mole
2. How many atoms are in 10.0g of gold?
10 g gold 1 mole 6.02 x 1023 atoms = 197.0g 1 mole
PRACTICE PROBLEMS:
1. How many moles are equal to 625g of copper?
625g of copper 1 mol = 9.77 mol Cu 64 g Cu
7744.19g = 7740g
3.06 x 1022 atoms
2. How many moles of barium are in a sample containing 4.25 x 1026 atoms of barium?
4.25 x 1026 atoms of barium 1 mol = 706 mol 6.02 x 1023 atoms
3. Convert 2.35 moles of carbon to atoms.
2.35 moles 6.02 x 1023 atoms = 1.41 x 1024 atoms 1 mole
4. How many atoms are in 4.0g of potassium?
4.0 g 1 mole 6.02 x 1023 atoms = 6.2 x 1022 atoms 39.1 g 1 mole

1 mole = 6.02 x 1023 atoms 1 mole = atomic mass (g)
5. Convert 9500g of iron to number of atoms in the sample.
9500 g Fe 1 mole 6.02 x 1023 atoms = 55.8g 1 mole
6. What is the mass of 0.250 moles of aluminum?
0.250 moles 27.0g = 6.75 g Al 1 mole
7. How many grams is equal to 3.48 x 1022 atoms of tin?
3.48 x 1022 atoms 1 mole 118.7g 6.02 x 1023 atoms 1 mole
8. What is the mass of 4.48 x 1021 atoms of magnesium?
4.48 x 1021 atoms 1 mole 24.3g 6.02 x 1023 atoms 1 mole
9. Howmanymolesis2.50kgoflead?
2.50kg 1000 g 1 mol 1 kg 207.2 g
1.0 x 1026 atoms
= 6.86 g Sn
= 0.181 g Mg or 1.8 x 10-1
= 12.1 mol
10.Find the mass, in cg, of 3.25 x 1021 atoms of lithium.
3.25 x 1021 atoms 1 mol 6.9g 100cg 6.02 x 1023 atoms 1 mol 1 g
= 3.7 cg
Answer 2

The study of chemicals is called chemistry.

The correct answer is [tex]1.055* 10^{-22}[/tex].

Mass is defined as the Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies.

The formula is used is as follows:-

[tex]= \frac{1 mole}{6.022*10^{23}} *\frac{63.546}{1mole}\\\\=1.055*10^{-22}[/tex]

Hence, the correct answer is:- [tex]1.055*10^{-22}[/tex]

For more information, refer to the link:-

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Related Questions

Why can a container never be half full of air
PLEASE HELP I WILL HIVE YOU BRAINLYEST

Answers

Answer:

A gas container cannot be half filled because of the following reasons:

• Gases are the fluid form of matter which occupy the entire container.
• Gases have a property that they can diffuse to all the corners of container and occupy entire space of the container.
• Gases have high kinetic energy and
Very very less inter molecular force.
• if we try to fill it half way, it occupies full space.
• For example: when we blow air into balloon, it tries to occupy full space of balloon.

please give thanks! and brainliest<3

Which civilization's largest contribution to world astronomy is the invention of astronomical tools?
A. Rome
B. Egypt
C. Babylon
D. Islamic Empires

Answers

Answer:

The answer is C.

Explanation:

What happens to the volume of a liquid when it is poured from a small container into a large container?

Answers

Answer:

it stays the same i think

Explanation:

1. What is Chemistry?

Answers

Answer:

The definition of chemistry is a branch of science that deals with the form of properties of matter and substances or the interaction between individuals.

which family of elements can be found in the area marked B

A) Alkali earth metals
B) Halogens
C) Alkali metals
D) Oxygen family

Answers

Answer:

A) Alkaline Earth Metals

Explanation:

Area Marked A would be Alkali Metals

Area Marked B would be Alkaline Earth Metals

Area Marked C would be Transition Metals

Area marked H would be Halogens

Which best describes the trends in electronegativity on the periodic table?
Electronegativity increases up and to the right.
Electronegativity increases down and to the left.
Electronegativity decreases up and to the left.
Electronegativity decreases down and to the right.

Answers

Answer:

A. Electronegativity increases up and to the right.

Explanation:

edge 2021

Electronegativity increases up and to the right. Hence, option A is correct.

What is a periodic table?

The periodic table is a tabular arrangement of the chemical elements organized with an increasing atomic number.

Electronegativity is a chemical property that explains the trend of an atom to attract a shared pair of electrons towards itself. As you move from left to right across the periodic table, electronegativity increases, and as you move down the table electronegativity decreases.

Hence, option A is correct.

Learn more about the periodic table here:

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Is malleability an extensive physical property or an intensive physical property? Explain your answer

Answers

Intensive, hope that helps

Noah uses a thermometer to measure the temperature of some water as shown in the figure below.


What is the temperature on the Celsius scale?

Answers

Answer:

Whats the figure?

Explanation:

15. Convert 24 mi/hr to ft/min

Answers

The answer would be 2 200 feet/minute

what equipment is needed to weigh 5.0 grams of zinc?

Answers

you would weigh the zinc with a weight, Zinc is a mineral so wether it's a solid or a liquid you would measure it with a zinc.

What is a variable? A. Something that must be kept constant in an experiment. B. A value or characteristic that can take different values. C. A statement that explains a phenomena and can be tested. D. An educated guess used in an experiment.

Answers

Answer:

The answer is B, a value or characteristic that can take different values

Explanation:

ex.) 1s + 3

s is the variable

Variables are the varying or unchangeable data or factors in an experimental design. It can be defined as a characteristic that can have different values. Thus, option B is correct.

What is the meaning of variables?

Variables are experimental characteristics that may be consistent or can be changeable. In an experimental design, the variables are used to analyze the cause and effect.

The variables of an experiment can be dependent, independent, or controlled. The varying factors in an experiment to analyze are called independent variables.

The factors that depend and respond to the effect of the independent variables are called dependent variables. These all values are contrasted to the control group with a fixed value.

Therefore, in option B, the variables are the characteristics with the same or different values.

Learn more about variables here:

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what is the best way to learn measurements and how to add and multipy them​

Answers

Answer:

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Explanation:

What is the SI unit for mass

Answers

Answer:

Kilogram as I said in the comments.

Explanation:

Answer:

kilogram! abbreviation: kg

Explanation:

How to we know how many neutrons are in the atoms we draw models for ? (We represent average atoms, not ions or isotopes)

Answers

Answer:

Atoms is the smallest unit of a chemical element and consist of three main components protons, neutrons, and electrons.

The number of a neutron is based on the difference between the mass number of the atom (M) and the atomic number (Z). every isotope of an element has a different number of neutron.

But in a neutral atom or average atom, the number of neutrons is equal to the number of protons and the number of electron.

Example of the number of neutrons in an average atom: In Nitrogen-14, the atomic number and the number of protons is 7, it means the number of neutrons will also 7.

the measure of the number of units, such as atoms, molecules, or ions of which all matter is made

Answers

Answer:

Particles of matter.

Explanation:

In science, matter can be defined as anything that has mass and occupies space. Therefore, any physical object that is found on planet Earth is typically composed of matter.

Matter are known to be made up of atoms and as a result has the property of existing in states. The three (3) classical states of matter are;

1. Gas: is the state of matter in which the physical substance has no definite shape or volume and as a result fills all available space. Also, gases are easily compressible and can flow. Examples of gases are hydrogen, oxygen, argon, nitrogen etc.

2. Solid: is the state of matter in which the physical substance has a definite shape and fixed volume but not compressible. Examples of solids are pen, screwdriver, television, car etc.

3. Liquid: is the state of matter in which the physical substance can be poured and it takes the shape of its container. Also, liquids generally have a definite volume. Examples of liquids are urine, water, milk, blood etc.

Particles of matter can be defined as the measure of the number of units, such as atoms, molecules, or ions of which all matter is made. These particles of matter are typically tiny, minute or incredibly small and as such can not be seen with the naked eye. Also, the particles of matter are usually in a continual state of motion and are primarily held together by a bond energy.

Additionally, the four (4) properties that are peculiar to matter are: flow, volume, shape and compressibility.

I need help on this please

Answers

Answer: C

Explanation: I just did it

The Periodic Table is arranged according to?

the number of electrons that each element has.
the boiling point of the elements.
the reactivity of the elements.
the number of protons each element has.

Answers

Answer:

The number of protons each element has.

Explanation:

The periodic table is arranged by atomic number, which is the number of protons in the nucleus of each element.

Answer:

The number of protons each element has.

Explanation:

The number of protons each element has is also known as the atomic number. Elements are arranged from left to right and top to bottom in order of increasing atomic number. The order generally coincides with increasing atomic mass. The rows are called periods.

Are the numbers 76.48cm, 76.47cm, and 76.59cm accurate or precise

Answers

Answer:

accurate

Explanation:

A cylinder container is filled with air. It’s radius is 6.00cm and it’s height is 3.50cm. What is the volume of air inside? (Use 3.14 for TT) Hurry Guys!!!

Answers

Answer:

396 mL

Explanation:

The volume of water in a transfer pipette is 15.23 ml. A 6.7 mL
volume of water was then transferred out. Considering
significant figures, what is the new volume?

Answers

Answer:

The new volume of water in the pipette is 8.53 mL

Explanation:

The given information are;

The initial volume of water in the transfer pipette = 15.23 mL

The amount of water transferred from the pipette = 6.7 mL

The new volume of water in the transfer pipette is given as follows;

New volume of water in the pipette =  Initial volume of water in the pipette - Volume of water transferred out

Therefore, we have;

New volume of water in the pipette = 15.23 mL - 6.7 mL = 8.53 mL

The new volume of water in the pipette = 8.53 mL

Answer:

8.5

Explanation:

15.23 - 6.7 = 8.53

The correct amount of sig figs would make the answer 8.5

What is the reason developed nations are more likely to consider solutions to environmental problems than less developed nations?

Answers

Answer:

most developed nations.....

Explanation:

have more people and more resources to fix problems

Write this number in scientific notation: 0.000467

Answers

Answer:

467× 10^-6 or 467 × ten to the power of negative six - hope this helps

What is the density of the football?
g/cm3
Calculate the density of the football. Use the formula
D = m/V
where D is the density, m is the mass, and V is the
volume. Record your calculations in Table B of your
Student Guide.

Answers

Answer:

0.10

Explanation:

Answer in edge 2020

Answer:

0.10

Explanation:

Just did it

Select all the correct answers.
Which of the following are considered pure substances?
element
compound
homogeneous mixture
heterogeneous mixture

Answers

Elements is considered as a pure substance

Element and compound both are considered as pure substances.

Thus, both option 1 and 2 are correct.

What is a pure substance?

Pure substances are defined as materials with a consistent chemical composition that cannot be physically separated through the use of techniques like filtration, evaporation, etc.

Anything that is made up of the same atom or molecule throughout is a pure substance. Everything else is a mixture.

Since elements are not physically or chemically broken down to generate simple, tiny entities like zinc, elements and compounds are pure substances. Furthermore, pure substances like water are combined to create compounds.

Both homogeneous and heterogeneous mixtures are not pure substances since they lack predetermined ratios and proportions, making it difficult to identify their exact composition.

Pure substances include sodium, water, a copper wire, an aluminum foil, etc.

Thus, elements and compounds both are categorised as pure substances.

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what does 2 mean on MgBr2

Answers

Answer:

two means Br2

wat else................

Answer:

It means 1Magnesium and 2Bromine

When you light a match, there is a brief Smell that almost burns your nose

Answers

Answer:

Hdhgfrdf

Explanation:

Answer:

This is the smell of the smoke from the fire

Explanation:

How many liters are in a cubic meter?
100,000
100
10.000
1,000
10

Answers

The amount of liters in a cubic meter is 1,000 you can find it on google

Answer:

The amount of liters in a cubic meter is 1,000 you can find it on google

Explanation:

Which civilization linked Venus with motherhood and childbirth, and realized it was one object rather than two?
A. Aztecs
B. Mayans
C. Babylonians
D. Ojibwe

Answers

Answer:

The correct options is;

C. Babylonians

Explanation:

The Babylonians showed to have had knowledge that the Evening Star, which is the appearance of the planet Venus in the west, after sunset and the Morning Star which is the bright, white object that can be seen early in the morning in the Eastern sky are one and the same object as indicated in the middle of the seventeenth century BCE compiled Venus tablet of Ammisaduga.

What is the density of a substance that has a mass of 90 g and a volume of 18 cm3?

Answers

Answer:

Explanation:

DENSITY =  MASS( g)/ VOLUME (cm3)

               = 90 g /  18 cm3

                = 5g/cm3

be attentionto this note , that each 1cm3 =1ml



Which of the following statements is an inference about the picture
The girl broke the vase.
The girl has blonde hair.
The vase is broken.
0 The girls' bow is blue and purple.

Answers

Answer:

there is no picture put it in next time

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