1. a) If 1.08 g of sodium sulfate reacts with an excess of phosphoric acid, how much sulfuric acid is produced? (0.74577)

b) If 0.726 g of sulfuric acid is produced in the laboratory experiment, what is the percent yield of sulfuric acid? (97.3190)

2.

If 3.2 moles of sodium sulfate is used in the reaction, how many formula units of phosphoric acid is needed to completely react?
(1.28427×1024

There are main groups in the modern periodic table of elements

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane