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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According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

How many molecules are found in 1.32 mol of nacl?

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature