Answer to Question #136757 in General Chemistry for Kelly

Question

1.9kg block of aluminum at 995 degrees Celsius is dropped in a 1.4 kg if water at 29 degrees Celsius. The water is heated to a boiling point and some of the way yet boils away. How much boils away?

Answer 1

1.9kg block of aluminum at 995 degrees celcius

1.4 kg dropped into water at 29 degrees Celsius

( 1.9kg - 1.4kg ) = 0.5kg

If 0.5kg. = 29 ⁰C

? = 100⁰ C

( ( 100 ) (0.5)) / 29

= 1.7kg