Please answer ALL OF THE Questions Below. Thanks!!! Question 37 (4 points) What

Question

Please answer ALL OF THE Questions Below. Thanks!!!

Question 37 (4 points) What is the percent concentration by volume of a 500mL solution containing 67mL of HCl? Save Question 38 (4 points) What is the percent concentration by volume of a solution containing 620mL of water and 85mL of nitric acid? Question 39 (4 points) What is the molarity of a 3L solution containing 0.5 moles of KCI? Save Question 40 (8 points) What is the molarity of a solution containing 5.8g of CaCl2 dissolved in 0.500L of water?

Explanation / Answer

37. % of HCl

= 67/500*100

=13.4

38. % of nitirc acid

=85/620*100

=13.7

39. molarity of KCl

=no.of moles/volume in lit.

=0.5/3 lit

=0.166

molarity of CaCl2

= wt/Mwt*1000/volume in ml

= 5.8/110.9*1000/500

=0.104

32. Aldehyde (it contains HC=O group)

33. Ketone (it contains C=O group)

34. Acid (it contains COOH group)

35. Amine (it contains substituted amine N group)

36. Aldehyde(it contains HC=O group)

29. 1-ethylcyclobutane

30. Cycloheptene.

31. Cyclopentyne

27. 2NaOH+H2SO4------>2H20+Na2SO4

so answers H20 and Na2SO4 products.

28. 2NH4Cl+Mg(OH)2------>2NH3+2H2O+MgCl2

answer product H2O

isomers are i and iv

both are C4H10

same molecular formula different structures is structural isomers

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