Water has a heat of fusion of 6.01 kJ/mol. An iceberg in the Atlantic Ocean near Newfoundland contains 1.27 x 107 mol of water. How much thermal energy does it absorb as it melts? Answer using appropriate significant digits.

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25-02-2021
Biology

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Water has a heat of fusion of 6.01 kJ/mol. An iceberg in the Atlantic Ocean near Newfoundland contains 1.27 x 107 mol of water. How much thermal energy does it absorb as it melts? Answer using appropriate significant digits.

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doyouneedhelp doyouneedhelp · Answer 1 · 2021-02-25T06:37:22+01:00

Hello.

I believe this is just conversion factors.
*I think the 107 above means 10^7

1.27 * 10^7 mol * 6.01 kJ/ 1 mol = 76,327,000 kJ
That value, rounded to significant figures, produces 763 * 10^5 kJ
*The 1.27 and 6.01 represent the least amount of significant figures; the rule of sig. figs. for division and multiplication is the value with the fewest sig. figs..

(For addition and subtraction, the least amount of decimal places determines the number of sig. figs..)

Leave a comment if you have a question. Good luck!