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3 years ago

How many total chlorine atoms are in the formula 4NaCl

Chemistry

1 answer:

postnew [5]3 years ago

7 0

Answer:

4 Chlorine atons

Explanation:

4 molecules of NaCl

In NaCl we have only 1 atom of Cl

Therefore in 4 molecules, we have 4 atoms of Cl.

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What is indicated by the methyl- prefix

Ugo [173]

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Explanation:

The methyl prefix means theres a CH3 group bonded to a carbon in a hydrocarbon. This is called branching because it looks like a branched tree. This is literally cheating but you do you.

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What is the concentration (M) of CH3OH in a solution prepared by dissolving 11.7 g of CH3OH in sufficient water to give exactly

Andrej [43]

Answer:

$3.65~M$

Explanation:

We have to remember the molarity equation:

$M=\frac{mol}{L}$

So, we have to calculate "mol" and "L". The total volume is 100 mL. So, we can do the conversion:

$100~mL\frac{1~L}{1000~mL}=~0.1~L$

Now we can calculate the moles. For this we have to calculate the molar mass:

O: 16 g/mol

H: 1 g/mol

C: 12 g/mol

$(16*1)+(1*4)+(12*1)=32~g/mol$

With the molar mass value we can calculate the number of moles:

$1.7~g~of~CH_3OH\frac{1~mol~CH_3OH}{32~g~of~CH_3OH}=0.365~mol~CH_3OH$

Finally, we can calculate the molarity:

$M=\frac{0.365~mol~CH_3OH}{0.1~L}=3.65~M$

I hope it helps!

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3 years ago

I just pulled up to Sheetz and filled my car up with gas. Explain the transfer of energy that would occur once I start then driv

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4 years ago

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3 years ago