50.00 grams of chromium (III) sulfate is dissolved in enough water to prepare 250.0 ml of solution. • What is the chemical formula for chromium (III) sulfate? Enter your answer as a text string without subscripts. Example: Ca3(PO4)2 would be entered as Ca3(PO4)2 chromium (III) sulfate Answer • What is the molecular weight of chromium (III) sulfate grams per mole? Answer grams/mole • What is the concentration of chromium (III) sulfate in the solution above in moles per liter? Answer M • What is the concentration of Cr+3 ions in the solution above in moles per liter? Answer M • What is the concentration of SO4−2 ions in the solution above in moles per liter? Answer M • How many milliliters of the solution above are required to supply 0.100 moles of chromium (III) sulfate? Answer mL • How many milliliters of the solution above are required to supply 0.275 moles of SO4−2ions? Answer mL • How many milliliters of the solution above are required to supply 0.120 moles of Cr+3 ions? Answer mL

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.