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3 years ago

How many molecules are in 18moles of CH.

Chemistry

1 answer:

-Dominant- [34]3 years ago

8 0

Answer:

1.08 x 10²⁵molecules

Explanation:

From the mole concept we know that ;

1 mole of any substance contains 6.02 x 10²³ molecules

This number is the Avogadro's number.

So;

18 mole of CH will contain:

Number of molecules of CH = 18 x 6.02 x 10²³ = 1.08 x 10²⁵molecules

The number of molecules is therefore 1.08 x 10²⁵molecules

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Marina CMI [18]

<u>Answer:</u> The concentration of the solution is 0.25 M

<u>Explanation:</u>

Let the volume of solution of 2.5 M NaCl be 10 mL

We are given:

Dilution ratio = 1 : 10

So, the solution prepared will have a volume of = $\frac{10}{1}\times 1000=100mL$

To calculate the molarity of the diluted solution, we use the equation:

$M_1V_1=M_2V_2$

where,

$M_1\text{ and }V_1$ are the molarity and volume of the concentrated NaCl solution

$M_2\text{ and }V_2$ are the molarity and volume of diluted NaCl solution

We are given:

$M_1=2.5M\\V_1=10mL\\M_2=?M\\V_2=100mL$

Putting values in above equation, we get:

$2.5\times 10=M_2\times 100\\\\M_2=\frac{2.5\times 10}{100}=0.25M$

Hence, the concentration of the solution is 0.25 M

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4 years ago

What is the type of weak bond between the hydrogen of one molecule and the nitrogen of another molecule, where the two don't act

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<h2>Hydrogen Bonding</h2>

Explanation:

Hydrogen bonding is a type of weak bond.
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4 years ago

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hram777 [196]

All of the above answers are true right answer is option D

because, no bond no molecule no interaction no life,

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3 years ago

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Vedmedyk [2.9K]

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Explanation:

35.5.

relative moleculer mass

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3 years ago

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3 years ago

How many molecules are in 18moles of CH.​

How many molecules are in 18moles of CH.