71% 036/18 0 This is aNumericEntryquestion/tsworth 1 point /You have 5of 5 attem

Question

71% 036/18 0 This is aNumericEntryquestion/tsworth 1 point /You have 5of 5 attempts remaining / There is a 5%attempt penalty 30 Question( point) a See page 236 1st attempt See Periodic Table See Hint An insulated container is used to hold 472 gof water at heated for 30 minutes in a boiling water bath at 1000°C. The heated test tube is 169 A sample of copper weighing8.10gisplaced in a dry test tube and carefuly removed from the water bath with laboratory tongs and inclined so that the copper slides into the water in the insulated container. Given that the speciic heat of solid copper is 0.385 JNgC), calculate the maximum temperature of the water in the insulated container after the copper metal is addedt 63032 > DOLL 8 s Lock

Explanation / Answer

heat lost by the copper = heat gained by the water

m C dT copper = m C dT water

( 8.10 g) ( 0.385 j / g*degreesC) ( dT cooper) = ( 47.2 g) (4.184  j / g*degreesC) ( dT water)

( 3.1185) (dT copper) = ( 197.4848) (dT water)

( 3.1185) ( 100.0 - Tf) = ( 197.4848) ( Tf - 16.9)

311.85 - 3.1185 Tf = 197.4848 Tf - 3337.49

3649.34 = 200.6 Tf

Tf = 18.19 Celsius

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