3.) If it takes 3.0 Calories to increase the temperature of one gram of a substance 1 degree Celsius, how many Calories of heat must be added to 30.0 grams of the substance to increase the temperature
one degree Celsius? (No phase change takes place.)
a.) 20 Calories
b.) 90 Calories
c.) 60 Calories
d.) 3 Calories
e.) None of the above.

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.