What is 1 moles in grams?

Answers

Answer 1

Carbon-12 has a theoretical atomic mass of 12 grams (6 protons and 6 neutrons). This means that the atomic mass or atomic weight of carbon (12 grams) equals exactly 1 mole of carbon.

In the International System of Units, the mole (symbol mol) is the unit of substance amount (SI). The amount of substance is a measurement of how many elementary entities of a given substance are present in an object or sample.

An elementary entity can be an atom, a molecule, an ion, an ion pair, or a subatomic particle such as an electron, depending on the substance. For example, despite having different volumes and masses, 10 moles of water (a chemical compound) and 10 moles of mercury (a chemical element) contain equal amounts of substance, and the mercury contains exactly one atom for each molecule of water.

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Related Questions

Which object is smaller than a cell?

Molecule
Organ
Organism
Tissue

Answers

Answer:

Molecule

Explanation:

Levels of organization (atom-molecule-cell-tissue-organ-organ-system-organism)

Answer is the first one

A student performs an acid-base titration experiment to determine the amount of ascorbic acid in different brands of juice. Which solution should the student use as the base solution in this acid-base titration experiment?
A.) HCl
B.) NaOH
C.) LiBr
D.)CaCl2

Answers

Answer:

idn Mann nnnnnnnn . .....mmmmm mmmm aaaaaaa it's a

The answer is Option B, NaOH is the solution student should use as the base solution in this acid-base titration experiment to determine the amount of ascorbic acid in different brands of juice.

What is an Acid Base Titration ?

An acid–base titration is a method of quantitative analysis.

It is used for determining the concentration of an acid or base by neutralizing it with a standard solution of base or acid of known concentration.

An indicator is used to monitor the progress of the acid–base reaction.

Ascorbic acid, HC₆H₇O₆ is an acid. So can be titrated with a base , sodium hydroxide, NaOH using the indicator, phenolphthalein.

HC₆H₇O₆(aq) + NaOH(aq) → NaHC₆H₇O₆(aq) + H₂O(l)

Among the options , HCl is an acid , LiBr , CaCl₂ are salts , NaOH is the only base.

Phenolphthalein changes from colorless to pink (or red) when all of the acid gets neutralized.

Therefore NaOH is the solution student should use as the base solution in this acid-base titration experiment to determine the amount of ascorbic acid in different brands of juice.

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A majority of the world's electricity comes from water power.
True
False

Answers

Answer:

True.

Explanation:

MULTIPLE CHOICE QUESTION
The difference between the smooth and rough ER is
that are attached to the outside of
ER.
the
the
ribosomes, smooth
DNA, rough
DNA, smooth

Answers

Answer:

???????

Explanation:

Answer: The difference between the smooth and rough ER is that ribosomes are attached to the outside of the rough ER.

Hope this helped! :)

how many moles of ammonia could be obtained from a maximum of 5.0 moles of nitrogen​

Answers

Answer:

10 moles of ammonia could be obtained from a maximum of 5.0 moles of nitrogen​.

Explanation:

The balanced reaction is:

N₂ + 3 H₂ → 2 NH₃

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

N₂: 1 moleH₂: 3 molesNH₃: 2 moles

Then you can apply the following rule of three: if by reaction stoichiometry 1 mole of nitrogen produces 2 moles of ammonia, 5 moles of nitrogen produces how many moles of ammonia?

[tex]moles of ammonia=\frac{5 moles of nitrogen*2 moles of ammonia}{1 mole of nitrogen}[/tex]

moles of ammonia= 10

10 moles of ammonia could be obtained from a maximum of 5.0 moles of nitrogen​.

Which question is a scientist who studies the genetic engineering of crops most likely attempting to answer?

A. How can a more stable supply of crops be created?
В. How can natural selection create better crops?
С. How can crops be grown without a need for light?
D. How can the genetic variation of crops be increased?

Answers

Answer:

i think that it is A

Explanation:

the other ones did not make as much sense

A scientist who studies the genetic engineering of crops most likely attempting how more stable supply of crops be created. so, option A is correct.

What is genetic engineering ?

Genetic engineering, often known as genetic alteration, is a technique that modifies an organism's DNA using technology developed in labs. This could entail altering a single base pair (A-T or C-G), erasing a section of DNA, or incorporating a new DNA sequence.

In order to fix genetic flaws and hence prevent or treat hereditary illnesses, gene therapy aims to change specific genes.

The goal of genetic engineering is to alter the genes to increase the organism's capabilities beyond what is typical.

The term "genetic engineering" originally applied to a number of methods for modifying or altering living things through their heredity and reproductive processes.

Thus, option A is correct.

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how would you prepare 500 ml of a .50m solution of naoh from a 2 m stock solution

Answers

Explanation:

i.e M = m/V(L)

M= Molarity of substance

m = number of moles of substance (i.e solute)

V(L) = volume of solution in Litres

So talking about our question molarity should be 0.5 M,volume should be 0.1 L , and we should know that Molar Mass of NaOH is 40 because Atomic mass of Sodium i.e (Na known as Natrium) is 23,Atomic mass of Oxygen (O) is 16 and Atomic mass of Hydrogen is 1.

Adding them all up gives Molecular mass of NaOH as 40

So if we solve above equation we get no of moles of NaOH present in 0.1 litres of solution

Let’s do that math

Rearranging equation we get m=M×V(L) i.e m= 0.5×0.1 =0.05. So 0.05 moles of NaOH are present in 100 ml of 0.5 Molar solution

Now we also know that to find no of moles of a substance we have a formula and it is m=W/Mw where

m = no of moles of a substance

W = Mass of substance

Mw = Molecular weight of the substance

So substituting all values and rearranging equation we get mass of NaOH as

W=m×Mw = 0.05×40=2 grams

Hence we found the required mass of NaOH as 2 grams.

Now talking about shortcut

we know as explained above M=m/V(L) and m=W/M

Substituting value of m(no of moles) in M=m/V(L) we get M=WMw×V(L)

Try substituting the values yourself and get the answer

Note :: The value of Volume should always be substituted in terms of Litre only. That is the reason i used the letter (L) at all the places with V

So thats all get the answer and comment any other problems below

Hope you got your problem solved

Thanks!!!

Mention any four names of conservation area?​

Answers

Answer:

pi r squared

Explanation:

How many grams of KOH are required to make 125mL of a 0.50M solution?

Answers

Answer:3.51 g

Explanation: M(KOH)= 39.10 + 16 + 1.008 = 56.108 g/mol

Amount of substance is n= m/M = cV and mass m= McV

Volume in litres is 0.125 l

Which of the elements shown will form ions, what will be the charges of those ions, and why will they have those charges?

Answers

Answer:

the sodium and chlorine are the form of ion

Explanation:

because sodium have tendency to loose electron it become positive ion and chlorine has tendency to gain electron it becomes negative ion

Guiding Question: How might a long-term drought in a nearby forest impact the herbivores living in the forest?

Answers

Answer:

Drought can affect water sources, land, fish and wildlife and plant communities, and can also affect trees directly by slowing or arresting growth, and causing injury or death

Explanation:

Why does photosynthesis require 6 molecules of carbon dioxide and 6 molecules of water to make 1 molecule of glucose

Answers

For each molecule of glucose produced: 6 water water molecules are oxidized, and come to be the supply of electrons for carbon dioxide reduction. 6 molecules of carbon dioxide are required, one for every carbon atom in glucose. 6 molecules of oxygen are produced as a with the aid of made from water oxidation.

when is pressure evident in daily lives?​

Answers

Explanation:

When air is sucked out of a drinking straw, the air pressure inside if decreases and the atmospheric pressure outside

Answer:

The pressure of the liquid (blood) forces the liquid to move into the syringe when its plunger is withdrawn. When air is sucked out of a drinking straw, the air pressure inside if decreases and the atmospheric pressure outside forces the liquid to go inside the straw.

____H3PO4 + ____ KOH --> ______K3PO4 + ____H2O can someone please balance that chemical equation?

Answers

Answer:

H3PO4 + 3KOH ----> K3PO4 + 3H2O

Explanation:

The valency of K element is + 1 while that of PO4 compound is -3

Hence, at least 3 K atoms are needed to combine with PO4 to form K3PO4 compound.

Hence, the revised equation will be

H3PO4 + 3KOH ----> K3PO4 + 3H2O

Now, the number of atoms and charges of each element is a given equation are equal on both the left and right hand side.

Please help me on this

Answers

Answer:

the answer is 3(decay) and

the second isa 1(alfa particle) has a mass of equal to helium nucleus

What is the density of an object that has a mass of 10 grams and a volume of 5 mL?

Answers

Answer:

2 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question we have

[tex]density = \frac{10}{5} = 2 \\ [/tex]

We have the final answer as

2 g/mL

Hope this helps you

What molecular shape is this lewis structure?
A. Trigonal pyramidal
B. Trigonal planar
C. Bent
D. Tetrahedral
E. Linear

Answers

Answer:C

Explanation: I learnet it too but more time ago hope its good

When the volume and concentration of a base that completely neutralizes an acid is known, you can determine the concentration of the acid due to at the point of neutralization, the number of moles of acid equals the number of moles of base.
why does this happen? (btw this is describing titration) the criteria for the answer is
"Try to answer why the results occurred. If you are in chemistry, what is happening at the molecular level with bonding, electrons, etc. " WILL MARK BRAINLIEST!!!!

Answers

Answer:

30

Explanation:

Pick 1 answer, please help!

Answers

the correct answer is option c
the the answer is: C


it is used to lift water from a well​

Answers

Answer:

When air is admitted into the well, the water recedes from the level of static head to the bottom of the discharge pipe. The displaced column of liquid rises up the discharge pipe. Air bubbles mix with water and this reduces the specific gravity of the column of water sufficiently to lift it to the surface.

Explanation:

Which statement explains why many scientists believe that carbon dioxide has likely contributed more to global warming than other greenhouse gases?

Answers

Answer:

C. Carbon dioxide has increased as a result of increased human activities.

Explanation:

THESE ARE THE OPTIONS FOR THE QUESTION BELOW

A. Carbon dioxide is emitted from fertilizers used in farming.

B. Other greenhouse gases trap more heat than carbon dioxide.

C. Carbon dioxide has increased as a result of increased human activities.

D. Carbon dioxide is emitted from commercial refrigeration.

Global warming can be regarded as

long-term heating of climate system of the Earth, this has been a point if observation even as far as pre-industrial period arround 1850. This global warming can be attributed to activities such as human activities as well as primarily fossil fuel burning, and as a result of this there is rise in heat-trapping, increase in greenhouse gas levels arround the atmosphere of the Earth. Human activities that brings about increase of Carbon dioxide concentration in the atmosphere are ;

✓ burning of oil as well as coal and gas,

✓deforestation

Hence, many scientists believe that carbon dioxide has likely contributed more to global warming than other greenhouse gases as a result of increase in Carbon dioxide which is as a result of increased human activities.

Greenhouse gas, any gas that has the property of absorbing infrared radiation (net heat energy) emitted from Earth's surface and reradiating it back to Earth's surface, thus contributing to the greenhouse effect. Carbon dioxide, methane, and water vapour are the most important greenhouse gases.

Answer:

C

Explanation:

Just took quiz on edg. 2021

What happens to sediments that get deposited in basins?

Answers

Sedimentary basins are regions of the Earth where long-term subsidence creates accommodation space for accumulation of sediments. As the sediments are buried, they are subject to increasing pressure and begin the processes of compaction and lithification that transform them into sedimentary rock.

Answer: Sedimentary basins are regions of the Earth where long-term subsidence creates accommodation space for accumulation of sediments. As the sediments are buried,

Explanation:Hopeits right i fount it on a site

PLEASE HELP

How does increasing the amount of greenhouse gases affect the earth?

It causes more hurricanes and tornadoes.
It lowers the earth's global temperature.
It causes fewer thunderstorms.
It raises the earth's global temperature.

Answers

It causes more hurricanes and tornadoes and it raises the earth’s temperature

Mark other guy brainliest

I needed the answer for the test and he is correct

7.(05.02 MC)
The speed of light in four different materials is shown below:
Material Speed of light in thousand miles per second
A
140
B
78
С
186
D
12
Which material is the most dense? (4 points)
Material A
Material B
Material C
Material D

Answers

Answer:

C

Explanation:

thats the answer!! HEHEHHEHHHHSJSKSSSSJS

Answer: B or A

Explanation: Everyone is saying C and i just took the test and it is not C

The "fuel" in most combustion reactions
is a hydrocarbon. Using the examples in
Model 2, write a description for the
classification of substances known as
hydrocarbons.

Answers

Answer:

hydracarbons are substances consisting of carbon and hydrogen only

Explanation:

Use magnitude please. I’ll give brainilest!!! Hi

Answers

Answer:ok

Explanation:why you take picture upside down

6
0/1 point
If you have 1.0 mole of each of the following compounds, which will have the most molecules?
Х
NI3 (nitrogen triiodide)
KCI (potassium chloride)
Lici (lithium chloride)
O C2H2 (ethyne)
O They all have the same number of molecules.
7
1/1 point
fn 35 moles of Iron (Fe)?

Answers

Answer:

6. They all have the same number of molecules.

7. 19.5 g

Explanation:

6. From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ molecules i.e

1 mole = 6.02×10²³ molecules

Considering the question given above, each compounds has just 1 mole. Thus, they will also have the same number of molecules.

7. Determination of the mass of iron (Fe)

Number of mole of Fe = 0.35 mole

Molar mass of Fe = 55.85 g/mol

Mass of Fe =?

Mass = mole × molar mass

Mass of Fe = 0.35 × 55.85

Mass of Fe = 19.5 g

Thus, the mass of 0.35 mole of iron (Fe) is 19.5 g

PLEASE Answer asap! What characteristics are shared by all alkali metals and alkaline earth metals?
A. They conduct electricity very well
B. They are strong and shiny
C. They form alkaline solutions when mixed with water
D. They do not react with water at all

Answers

Answer:

C

Explanation:

Mostly all of them but most likely C

the more the energy, the larger the (a,b,c,d)?

A:crest
B:trough
C:amplitude
D:wavelength

Answers

Answer: D:wavelenght

Explanation: Students will understand that shorter wavelengths have higher frequency and energy.

Answer:

C I believe... I might be wrong though

Explanation:

The Universal Space Agency wants to know the results of your Sim investigation. Write your report to the lead chemist, explaining why there is liquid water on the outside of the can but no liquid nitrogen. Use evidence from your investigation in your explanation.

Answers

Answer:

Due to warm temperature.

Explanation:

There is water present in liquid form instead of liquid nitrogen on the outer side of the can because of the temperature present in the surrounding environment. The temperature around the can is little warm which is favourable for the water but not for the liquid nitrogen. The liquid nitrogen present in liquid state when the temperature of the surrounding is too cold. if it is warm, the liquid nitrogen starts boiling and converts into gaseous state so that's why the warmer temperature is responsible for the presence of water not the liquid nitrogen.

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