CBSE Class 11 Chemistry Some Basic Concepts Worksheet Set D

Read and download free pdf of CBSE Class 11 Chemistry Some Basic Concepts Worksheet Set D. Download printable Chemistry Class 11 Worksheets in pdf format, CBSE Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Chemistry Class 11 Assignments and practice them daily to get better marks in tests and exams for Class 11. Free chapter wise worksheets with answers have been designed by Class 11 teachers as per latest examination pattern

Chapter 1 Some Basic Concepts of Chemistry Chemistry Worksheet for Class 11

Class 11 Chemistry students should refer to the following printable worksheet in Pdf in Class 11. This test paper with questions and solutions for Class 11 Chemistry will be very useful for tests and exams and help you to score better marks

Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry Worksheet Pdf

 
1. Calculate the number of atoms and molecules in 224ml of Nitrogen gas at STP.
 
2. Carbon and oxygen combine to give two compounds. The carbon content in one is 42.9% and in the other it is 27.3%. How does this illustrate the law of multiple proportions?
 
3. Commercially available H2SO4 contains 98% acid by mass. Find the molarity if density of the sample is 1.84g/cc. What volume of this acid is required to make 2 L of 0.1 M solution?
 
4. Find the number of atoms of each type in 3.42g of sucrose (C12H22O11).
 
5. How many atoms are there in a) 72 amu of Carbon b) 72 g of carbon.
 
6. How many atoms of hydrogen are there in 1.7g of ammonia?
 
7. 400 mL each of H2 and O2 are mixed and ignited, find volume of water vapour formed?
 
8. What mass C12 will contain the same number of atoms as in 3.6g of O16?
 
9. Calculate mass of CO2 containing same number of oxygen atoms as in 3g of NO.
 
10. From 0.2g of CO2, 1021 molecules are removed. How many of moles of CO2 remain?
 
11. (i) Define the terms empirical formula and molecular formula.
 
(ii) A hydrocarbon on burning gave 3.38g of CO2 and 0.69g of H2O. 10 L of the gas at STP weighs 11.6g. Find empirical and molecular formula.
 
12. Aqueous magnesium chloride solution is marketed as 20% by mass. Its density is 1.18 g/ml. Calculate
(i) The mole fraction of each component
(ii) Molarity.
(iii) Molality
(iv) The concentration in ppm.
 
12. Define (i) ppm, (ii) molarity, (iii) molality and (iv) mole fraction
 
13. Calculate the mole fraction of ethanol in 0.5 m aqueous solution of ethanol.
 
14. The mole fraction of glucose in water is 0.35. What is the molality of the solution?
 
15. What is the effect of temperature on molarity and molality?
 
16. The density of a 3M solution of NaCl is 1.25g/mL. Calculate the molality of the solution.


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CBSE Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry Worksheet

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