all questions.

A student performed the identical experiment to isolate Fe, NaCl, and SiO2 in a mixture. They performed every step correctly except they extracted with 10 mL of deionized water only once rather than the recommended four times. a. Will this error make the calculated mass percents of Fe, NaCl, and SiO2 accurate or inaccurate? Explain your answer. b. Will the calculated mass percents of Fe, NaCl, and SiOz be higher or lower than the true values? Mass percent of Fe ( Higher or Lower ). Must explain your answer. Mass percent of NaCl (Higher or Lower ). Must explain your answer. Mass percent of Sio ( Higher or Lower ). Must explain your answer. In this experiment, the mass of NaCl was measured indirectly. Design an experimental procedure that would allow the mass of NaCl to be measured directly