A chemist combines hydrochloric acid with a sodium hydroxide solution,transferring 5.75 kJ of heat.Express this in calories.

Question

Quizplus · Accepted Answer

To convert 5.75 kJ to calories, we can use the conversion factor:
1 kJ = 1000 cal
Therefore,
5.75 kJ = 5.75 × 1000 cal = 5750 cal
Since the answer choices are in scientific notation, we can rewrite 5750 as:
5.75 × 10³ cal
The only choice that matches this format is E, which gives the answer as:
1.37 × 10¹³ cal

A Chemist Combines Hydrochloric Acid with a Sodium Hydroxide Solution,transferring