Question

write down the concentration of each of the following solutions in g/l - 2gnaoh in 50 ml solution​

Answer 1

Answer:

2 g NaOH in 50 mL solution :

Concentration of NaOH in g L

−1

=

Volume of NaOH in litre

Mass of NaOH in gram

=

50

2×1000

=40 gL

−1

In terms of gram per litre :

2 g of NaOH in 50 mL has concentration = 40gL

−1

Molecular mass of NaOH = 23 + 16 + 1 = 40

Molarity=

Volume of NaOH in L

Mass of solute in moles

=

40×50

2×1000

=1mol L

−1

In terms of moles per litre:

2 g of NaOH in 50 mL has concentration = 1mol L

−1

$2 g NaOH in 50 mL solution :</p><p></p><p>Concentration of NaOH in g L−1=Volume of NaOH in litreMass of NaOH in gram</p><p>=502×1000=40 gL−1</p><p></p><p>In terms of gram per litre : </p><p>2 g of NaOH in 50 mL has concentration = 40gL−1 </p><p></p><p>Molecular mass of NaOH = 23 + 16 + 1 = 40 </p><p></p><p>Molarity=Volume of NaOH in LMass of solute in moles</p><p>=40×502×1000=1mol L−1</p><p></p><p>In terms of moles per litre: </p><p>2 g of NaOH in 50 mL has concentration = 1mol L−1 </p><p></p><p>$

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Answer 2

Explanation:

2 g NaOH in 50 mL solution :

Concentration of NaOH in g L

−1

=

Volume of NaOH in litre

Mass of NaOH in gram

=

50

2×1000

=40 gL

−1

In terms of gram per litre :

2 g of NaOH in 50 mL has concentration = 40gL

−1

Molecular mass of NaOH = 23 + 16 + 1 = 40

Molarity=

Volume of NaOH in L

Mass of solute in moles

=

40×50

2×1000

=1mol L

−1

In terms of moles per litre:

2 g of NaOH in 50 mL has concentration = 1mol L

−1

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