Answer
427.5k+ views
Hint: Molarity is the measure of number of moles of a solute that are present in one liter of a solution. Number of moles of a substance can be calculated by dividing the given mass of a substance with the molecular mass.
Formula used: Molarity$ = \dfrac{{{\text{number of moles }} \times 1000}}{{{\text{volume of solution in mL}}}}$
Complete step by step answer:
In this question we have given the molarity of a substance and volume of its solution and we have to verify the number of moles of solute. Molarity is defined as the number of moles of a solute that are present in one liter of a solution. The units of molarity is $M$. Number of moles of a substance can be calculated by dividing the given mass of a substance with the molecular mass of that substance. Formula to calculate molarity is,
Molarity$ = \dfrac{{{\text{number of moles }} \times 1000}}{{{\text{volume of solution in mL}}}}$
Molarity of solution is $0.05M$ (given)
Volume of solution is $600mL$ (given)
Substituting these values in the above formula we can calculate the number of moles of solute. So,
$0.05 = \dfrac{{{\text{number of moles }} \times 1000}}{{600}}$
Solving this we get,
Number of moles$ = \dfrac{{0.05 \times 600}}{{1000}} = 0.03$
Therefore, the number of moles of solute are $0.03$. Number of moles of solute that are given in the statement is $0.03mol$ which is equal to the number of calculated moles. Therefore, the given statement is correct. So, the correct answer is option A that is true.
Note:
Molality is defined as the number of moles that are present per kilogram of the solvent. In the calculation of molality the mass of solvent is used and in the calculation of molarity the volume of solution is used.
Formula used: Molarity$ = \dfrac{{{\text{number of moles }} \times 1000}}{{{\text{volume of solution in mL}}}}$
Complete step by step answer:
In this question we have given the molarity of a substance and volume of its solution and we have to verify the number of moles of solute. Molarity is defined as the number of moles of a solute that are present in one liter of a solution. The units of molarity is $M$. Number of moles of a substance can be calculated by dividing the given mass of a substance with the molecular mass of that substance. Formula to calculate molarity is,
Molarity$ = \dfrac{{{\text{number of moles }} \times 1000}}{{{\text{volume of solution in mL}}}}$
Molarity of solution is $0.05M$ (given)
Volume of solution is $600mL$ (given)
Substituting these values in the above formula we can calculate the number of moles of solute. So,
$0.05 = \dfrac{{{\text{number of moles }} \times 1000}}{{600}}$
Solving this we get,
Number of moles$ = \dfrac{{0.05 \times 600}}{{1000}} = 0.03$
Therefore, the number of moles of solute are $0.03$. Number of moles of solute that are given in the statement is $0.03mol$ which is equal to the number of calculated moles. Therefore, the given statement is correct. So, the correct answer is option A that is true.
Note:
Molality is defined as the number of moles that are present per kilogram of the solvent. In the calculation of molality the mass of solvent is used and in the calculation of molarity the volume of solution is used.
Recently Updated Pages
Mark and label the given geoinformation on the outline class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
When people say No pun intended what does that mea class 8 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Name the states which share their boundary with Indias class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give an account of the Northern Plains of India class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Advantages and disadvantages of science
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Bimbisara was the founder of dynasty A Nanda B Haryanka class 6 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
10 examples of evaporation in daily life with explanations
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
How do you graph the function fx 4x class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)