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How many milliliters are in 12.34 liters?
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1. Intro to General Chemistry
Conversion Factors
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How many kJ are equal to 1478 cal?
A
6.18 kJ
B
3.53 kJ
C
0.354 kJ
D
147.8 kJ
Guida verificata passo dopo passo1
Identify the conversion factor between calories and joules. The relationship is 1 calorie (cal) = 4.184 joules (J).
Convert the given energy from calories to joules by multiplying the number of calories by the conversion factor: \(1478 \text{ cal} \times 4.184 \frac{\text{J}}{\text{cal}}\).
Calculate the energy in joules (J) from the multiplication in the previous step (do not finalize the number here, just set up the expression).
Convert joules to kilojoules (kJ) by dividing the energy in joules by 1000, since 1 kJ = 1000 J: \(\frac{\text{energy in J}}{1000}\).
Express the final answer as the energy in kilojoules, which corresponds to the original calories converted to kJ.
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