CHEM 104 FINAL EXAMINATION SPRING 2016 Version B-1 L ON THE SCANTRON: write in t
ID: 1069397 • Letter: C
Question
CHEM 104 FINAL EXAMINATION SPRING 2016 Version B-1 L ON THE SCANTRON: write in the space provided your name, today's date, the instructor and the class. the Period section indicate the time class write the TEST VERSION and the NAME ofthis examination under TESTNAME in space provided on the scantron. BUBBLE IN YouR BANNER ID in the first nine (9) spaces of the ID Section Student 10 points will be deducted for the OMISSION OF the TEST VERSION and or BUBBLING IN THE ID. RECORD ALL ANSwERS ON THE SCANTRON P2V2/T2 H Ma TxSH, H- mass heat of fusion H-mx heat of vaporation VIMnl-v2n2 Piotal P1 +P2 P3 mass percent mass of solutelmass of solutionx100% Molarity moles of of solution CIVI-C2V2 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) There is more traffic between s and 9 in the morning because most people sart work at 9. This would be hypothesis theory C) experiment E) all the above 2) How many centimeters are there in 57.0in A) 140 cm C) 00445 em 3) Which of the followin g is not a chemical? A) sugar 40 931 g is the same mass as B 931 kg 50 A doctor's order iso 125 gef ampicillin. The liquid suspension on handcontains 250 mgi50 ml How many milliliters of the suspension are requaredn oooozs ml. Do 25 ml A) 0.0063 ml. 6) The density of a solution is 1.18 g/ml. Its specific gravity C001 7 Mercury has a speciese gravity of 136 How many mianaiters of ernury have a mass of 0.35 kg? Which of the following fermenting grapes to produce wine B) digesting a meal a tomato ripomingExplanation / Answer
1inch = 2.54cm
hence
(2)(e) 57inch = 2.54*57 = 144.78 = 145cm
(3) (b)light
(4) (e)9310mg 1g = 1000mg so 9.31g = 9.31*1000mg = 9310mg
(5)(d) 2.5ml 250mg/5ml = .25g/5ml as required amount is .125g dividing numerator and denominator both by 2 we get .125g/2.5ml
(6)(e) 1.18 specific gravity = density of liquid/density of water where density of water is 1.18g/ml
(7)(b) 25.7ml volume = mass/density volume = .35kg/13600kg/m3 = 0.0000257m3 = 25.7ml
(8)(d) dry ice subliming as in this case only phase is changing not chemical composition