Question 16 After a chemical reaction occurs in an open test tube,
measurements indicate that the mass of the reactants is greater
than the mass of the products remaining in the test tube. What
most likely explains the measurements ?
A
A gas was produced.
B
A solid was produced.
с
The salinity of the reactants was high.
D
The temperature of the reactants was low.

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.