Gravimetric analysis is ? What is the solid product we are isolating during the

Question

Gravimetric analysis is ?

What is the solid product we are isolating during the gravimetric analysis?

True or False: Hydrochloric acid is toxic and corrosive.?

Dr. A carried out the lab this summer using a tablet that he. He started with a 1.308 g tablet. At the end of the experiment, He isolated 0.500 g of calcium carbonate. Calculate the % calcium carbonate in Dr. A's tablet sample. [only enter number; NO UNITS!]?The purpose of drying the product in the oven at least twice during the lab is to .?

Explanation / Answer

Q1. Gravimetric analysis is:

B. a technique for filtering a solid from a liquid.

Q2. The solid product we are isolating during the gravimetric analysis is: Calcium carbonate.

Q3. Hydrochloric acid is toxic and corrosive. False. It is corrosive but not toxic. It is one of the least hazardous strong acids to handle; despite its acidity, it consists of the non-reactive and non-toxic chloride ion.

Q4. % calcium carbonate in Dr. A's tablet sample (wt/wt %) = (wt of solute/wt of mixture)*100 = (0.5/1.308)*100 = 38.22 %

Q5. The purpose of drying the product in the oven at least twice during the lab is to:

B. ensure the product is completely dry

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