1. If 155 g of CuSO4 is dissolved in enough water to make 2.25 L of solution, what is the molarity of the solution? 2. What mass (in grams) of NH4Cl is needed to prepare 250 mL of a 0.35 M ammonium chloride solution?

3. What is the volume needed to have a 2.11 M Solution of CaBr2 in water if you are dissolving 172.0 g of CaBr2?

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Elements that do not have full outer electron shells will donate, share, or take electrons from other atoms. choose the items that have the correct binary ionic formula.

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.

What sources of error may have contributed to the percent yield not being 100 percent? think about things that may have led to inaccurate measurements or where mass of the product could have been lost if this experiment was conducted in a physical laboratory.