Read and download free pdf of CBSE Class 11 Mole Concept Percentage Composition Worksheet. 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
CALCULATION & LAWS OF CHEMICAL COMBINATION
Q.1 Calculate the followingquantities :
(a) Mass, in grams, of 0.1mol of sucrose (C12H22O11)
(b) Moles of Zn(NO3)2 in 142.05 g of this substance
(c) Number of molecules of HCOOH in 10–6mol.
(d) Number of N-atom in 0.2mol of N2H4.
(e) Number of O-atom in 2 × 10–3 molAl(NO3)3.
(f) Number ofmoles of NH4Cl in 107 g of this substance.
(g) Mass, in grams of 2 × 10–3mol of CdS
(h) Molarmass of Cholesterol if 0.00105mol has amass of 0.525 g
(i) Mass, in grams, of 3 × 1021molecules ofAspirin, C9H8O4
(j) Molarmass of an element ifmass of 1 atom is 12 × 10–24 g.
(k) Number of SO42– ions in 19.6 g Cr2(SO4)3
(l) Number of Ca2+ ions in 6.2 g Ca3(PO4)2
(m) Number ofmoles of 11.2 LCO2 at NTP
(n) Number ofmoles of 2LCO2 at 16.42 atmpressure and 127°C.
(o) Molarmass of gas at 1atmand 27°C having density 1.2 × 10–3 g/ml
(p) Number ofmoles of 45.4 LO2 at STP
Q.2 Nitric acid is composed of HNO3 molecules. If a sampleweighing 6.3 g HNO3 then calculate
(a) Howmany nitrogen atoms are in this sample?
(b) Howmany oxygen atoms are in 2.52 gmof nitric acid.
Q.3 Complete the following table for an ideal gas
P V n Temperature
(i) 16.628 × 103 Pa 15 L ______ 27°C
(ii) __________ 42 L 0.42mol 200K
(iii) 304 torr ______ 4 × 10–2 327°C
(iv) 380mmHg ______ 0.5mol 300K
Q.4 The relative density of a mixture of CO2 (g) & H2O (g) w.r.t. gaseous hydrogen atoms is 30. Then Calculatemol percentage of CO2
Q.5 Ethanol,C2H5OH, is the substance commonlycalled alcohol.The densityof liquid alcohol is 0.7893 g/ml at 293K. If 1.2mole of ethanol are needed for a particular experiment,what volume of ethanol
should bemeasured out?
Q.6 Asample of claycontains 50%silica and 10%water.The sample is partiallydried bywhich it loses 8 gm water. If the percentage of silica in the partially dried clay is 52, calculate the percentage ofwater in the partiallydried clay?
Q.7 Agaseous mixture contains CO2 (g) and N2O(g) in a 2 : 5 ratio bymass. Find the ratio of the number of molecules of CO2 (g) and N2O(g)
Q.8 Find the number of neutrons in 0.45 gwater, assuming that all the hydrogen atoms are H1 atoms and all the oxygen atoms are O16 atoms
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CBSE Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry Worksheet
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Worksheet for Chemistry CBSE Class 11 Chapter 1 Some Basic Concepts of Chemistry
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Chapter 1 Some Basic Concepts of Chemistry worksheet Chemistry CBSE Class 11
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Chapter 1 Some Basic Concepts of Chemistry CBSE Class 11 Chemistry Worksheet
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Worksheet for CBSE Chemistry Class 11 Chapter 1 Some Basic Concepts of Chemistry
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