Question

A student sets up the following equation to convert a measurement.(The stands for a number the student is going to calculate.) Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together.

[87. J/mmol. oC] = ? kJ/mol. oC

Answer 1

To convert from J/mmol. oC to kJ/mol. oC, divide the given quantity by 1000. The missing part of the equation is 0.087 kJ/mol. oC.

Step-by-step explanation:

To convert from [87. J/mmol. oC] to kJ/mol. oC, we need to divide the given quantity by 1000 since there are 1000 J in 1 kJ and mmol refers to 1/1000 of a mol. Therefore, the missing part of the equation is:

[87. J/mmol. oC] = 0.087 kJ/mol. oC

Answer 2

87J/mmol°C * 1000/1000 = 87 kJ/mol°C

Step-by-step explanation:

As you can see, the student is converting the Joules to kJ (1000J = 1kJ) and the mmol to mol (1000mmol = 1mol) as follows:

87J/mmol°C * (1kJ / 1000J) = 0.087kJ/mmol°C

0.087kJ/mmol°C * (1000mmol / 1mol) = 87kJ/mol°C

That means the conversion factor is:

87J/mmol°C * 1000/1000 = 87 kJ/mol°C