Question

Sodium chloride, NaCl, contains 39% Na (sodium) and 61% Cl (chloride) by mass. If you have a 150-g sample of NaCl, how many grams of sodium and chloride are there in the sample?

Answer 1

Answer :-

58.5 grams of Sodium and 91.5 grams of Chlorine are there in the sample .

Explanation :-

We have :-

→ Percentage of Sodium (Na) = 39 %

→ Percentage of Chlorine (Cl) = 61 %

→ Mass of the sample of NaCl = 150 g

________________________________

Mass of Sodium :-

Let the required mass of Sodium in the sample, be "x" grams . So, required mass :-

⇒ (x/150) × 100 = 39

⇒ 100x/150 = 39

⇒ 100x = 39(150)

⇒ 100x = 5850

⇒ x = 5850/100

⇒ x = 58.5 g

Mass of Chlorine :-

Let the required mass of Cholrine in the sample be "y" grams. Now, we have :-

⇒ (y/150) × 100 = 61

⇒ 100y/150 = 61

⇒ 100y = 61(150)

⇒ 100y = 9150

⇒ y = 9150/100

⇒ y = 91.5 g

Answer 2

Answer:

$\large \dag$ Question :-

Sodium chloride ,NaCl ,contains 39% Na (sodium) and 61% Cl (Chloride)by mass.If you have a 150-g sample of NaCl ,how many grams of sodium and chloride are there in the sample .

$\large \dag$ Answer :-

$\sf\tt\large{\red {\underline {\underline{⚘\;There \;are \;58.5grams \;of \;the \;sodium \;and \;91.5grams \;of \;chlorine \;are \;in \;the \;given \;sample:}}}}$

$\large \dag$ Solution :-

In the question given that,

Sodium chloride, NaCl ,contains 39%of Na (sodium) and 61% of Cl (Chloride) by mass.If you have a 150-g sample of NaCl .

1. How many grams of sodium and chloride are there in the given sample.

Here we know that ,

Concentration can be obtain from the formulae that is ,

• Amount of substance/ total substance of solution ×100

According to, mathematical aspect we can get formula of amount of substance

• Total amount of solution/100× percentage of concentration of the given substance.

According to this formula,

lets take ,

First,

NaCl= 150-g

$\large\dag$ Case (i) :-

Na =39%

Therefore,

• Mass of Na= 150/100×39%

• Mass of Na= 1.5×39%

• Mass of Na =58.5g.

$\large \dag$ Case (ii) :-

Cl =61%

Therefore,

• Mass of Cl = 150 /100 ×61%

• Mass of Cl = 1.5 ×61%

• Mass of Cl =91.5grams.

Therefore,

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