Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Let's Review: The Tools of Quantitative Chemistry - Study Questions: 20

Answer

The berry juice has both the greater total energy content and the greatest content per mL.

Work Step by Step

We use stoichiometry, making sure that all units cancel out to $kJ$, to obtain: $130\ Cal \times 4.18\ kJ/Cal = 543.4\ kJ$ We divide by the volume to find: $543.4\ kJ/335\ mL=1.62\ kJ/mL$ $630\ kJ/ 295\ mL = 2.14\ kJ/mL$
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