Chemistry, asked by zameer74, 29 days ago

The atomic mass of sodium is 23. The number of moles in 46g of sodium is ________.
(a) 4 (b) 2 (c) 0 (d) ½​

Answers

Answered by MystícPhoeníx
42

Answer:

  • Option (b) 2 is the required answer .

Explanation:

According to the Question

It is given that,

  • Atomic Mass of Sodium = 23 ( Molar Mass)
  • Number of moles in 46 g of sodium .

we have to calculate the number of moles in 46 g of sodium .

For calculating the number of moles

we will use the following Formulae

  • No. of moles = Given Mass/ Molar Mass

by substituting the value we get

⇢ No. of Moles = 46/23

⇢ No. of Moles = 2

  • Hence, the number of moles in 46 g of sodium is 2 .

So, the required option is (b) 2 .

Answered by StarFighter
67

Answer:

Given :-

  • The atomic mass of sodium is 23.
  • The mass of sodium is 46 g.

To Find :-

  • What is the number of moles in 46 g of sodium.

Formula Used :-

\clubsuit Number of moles Formula :

\footnotesize \bigstar \: \: \sf\boxed{\bold{\pink{Number\: Of\: Moles =\: \dfrac{Mass}{Molar\:Mass}}}}\: \: \: \bigstar\\

Solution :-

Given :

  • Molar Mass of sodium = 23
  • Mass of sodium = 46 g

According to the question by using the formula we get,

\footnotesize \implies \sf\bold{\purple{Number\: Of\: Moles_{(Sodium)} =\: \dfrac{Mass}{Molar\: Mass}}}\\

\implies \sf Number\: Of\: Moles_{(Sodium)} =\: \dfrac{\cancel{46}}{\cancel{23}}

\implies \sf Number\: Of\: Moles_{(Sodium)} =\: \dfrac{2}{1}

\implies \sf\bold{\red{Number\: Of\: Moles_{(Sodium)} =\: 2}}

\therefore The number of moles present in 46 g of sodium is 2 .

Hence, the correct options is option no (b) 2 .

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