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vodomira [7]
3 years ago
10

A substance has half the number of particles as 12 grams of carbon 12, how many moles are in the substance?

Chemistry
2 answers:
gavmur [86]3 years ago
7 0

the molar mass is how many grams it takes to make a full mole.  The number  in carbon 12 tells us that it takes 12 g to makes a mole, so one half of that would be <u><em>option d, 0.5</em></u>.  

bagirrra123 [75]3 years ago
5 0

Answer:

d. 0.5

Explanation:

A mole is the amount of matter that is present in a certain substance and it is compared or measured against the amount of particles that can be found in 12 grams of Carbon 12, which is the most common isotope of Carbon that can be found in nature, so if a substance has half of the particles as 12 grams of Carbon 12, that means that it is only half a mole, so there are .5 moles of the substance.

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Answer:

// Program is written in C++ Programming Language

// Comments are used for explanatory purpose

// Program Starts here

#include<iostream>

using namespace std;

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{

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cin>>quarter;

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/*

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3 years ago
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6 0
3 years ago
Read 2 more answers
How many molecules are 4.3 x 10^27 molecules of N2O5<br>​
horrorfan [7]

Answer:

<h2>7142.86 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{4.3 \times  {10}^{27} }{6.02 \times  {10}^{23} }  \\  = 7142.857...

We have the final answer as

<h3>7142.86 moles</h3>

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Answer:

D

Explanation:

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2 years ago
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