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kati45 [8]
3 years ago
14

How many atoms are equal to 4.61 moles of carbon?

Chemistry
2 answers:
Effectus [21]3 years ago
5 0
Well accounting google,


Chemists generally use the mole as the unit for the number of atoms or molecules of a material. One mole (abbreviated mol) is equal to 6.022×1023 molecular entities (Avogadro's number), and each element has a different molar mass depending on the weight of 6.022×1023 of its atoms (1 mole).
Tasya [4]3 years ago
3 0

<u>Answer:</u> The number of atoms in given amount of carbon are 2.78\times 10^{24}

<u>Explanation:</u>

We are given:

Moles of carbon atom = 4.61 moles

According to mole concept:

1 mole of a n element contains 6.022\times 10^{23} number of atoms

So, 4.61 moles of carbon will contain (4.61\times 6.022\times 10^{23})=2.78\times 10^{24} number of atoms.

Hence, the number of atoms in given amount of carbon are 2.78\times 10^{24}

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What does ''Isotope'' means? &amp;from which language that drives from? answer to me then you will have 20 points help me then y
coldgirl [10]

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have the same number of protons but different numbers of neutrons in each atom.

The term isotope is formed from the Greek roots isos ("equal") and topos ("place"), meaning "the same place".

3 0
3 years ago
Consider the reaction of CaCN2 and water to produce CaCO3 and NH3 according to the reaction CaCN2 + 3H2O → CaCO3 + 2 NH3 . How m
adelina 88 [10]

Answer:

56 g. Option 3.

Explanation:

The reaction is: CaCN₂ + 3H₂O → CaCO₃ + 2 NH₃

1 mol of calcium cianide reacts with 3 moles of water in order to produce 1 mol of calcium carbonate and 2 moles of ammonia

We have the mass of each reactant, so let's convert the mass to moles:

45 g. 1mol / 80.08 g = 0.562 moles of cianide

45 g. 1mol / 18 g = 2.5 moles of water

The cianide is the limiting reactant:

3 moles of water need 1 mol of cianide to react

Then, 2.5 moles of water will need (2.5 . 1)/ 3 = 0.833 moles

As we have 0.562 moles of CN⁻ we don't have enough

We can work now, on the reaction:

Ratio is 1:1. Therefore 0.562 moles of cianide will produce 0.562 moles of carbonate

Let's convert the mass to moles to find the answer:

0.562 mol . 100.08 g / 1 mol = 56.2 g

8 0
2 years ago
Calculate the density (in g/mL) of a liquid that has a mass of 0.115g and a volume of 0.000265 L
notsponge [240]

density is mass/volume so we do

.115/.000265

433.962 g/mL


5 0
2 years ago
How much does a gallon of water WEIGH?
elixir [45]
A gallon of water weighs 8.34 pounds
4 0
3 years ago
Which of the following observations is usually not evidence of a chemical change ?
Nookie1986 [14]

Answer:

D

Explanation:

Have a nice day

5 0
3 years ago
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