EXAM PROBLEM #6 Instructions: Type your answer to the question in the textbox below. Show all work on your “work” page. Label which problem it is (#6) Question: A 30.00 mL sample of H3BO3 solution is titrated with 0.456 M KOH solution. It takes 27.91 mL of the KOH solution to reach the endpoint. What was the molarity of the original H3BO3 solution? Reaction: H3BO3 (aq) + 3 KOH (aq) –> 3 H2O (l) + K3BO3 (aq)
Read DetailsEXAM PROBLEM #1 Instructions: Type your answers to the questions in the textbox below. Label each answer (A, B, C). Show all work on your “work” page. Identify which problem it is (#1) Situation: 385 grams of Cu and 975 grams of HNO3 are combined and they react according to this chemical equation: 3 Cu(s) + 8 HNO3 (aq) –> 4 H2O(l) + 2 NO(g) + 3 Cu(NO3)2 (aq) Molar masses for all substances: Cu = 63.55 g/mol | HNO3 = 63.02 g/mol H2O = 18.02 g/mol | NO = 30.01 g/mol | Cu(NO3)2 = 187.57 g/mol Questions: How many grams of each of the following substances should be present at the end of the reaction? Cu HNO3 H2O
Read Details3.3 Bongi has hired a few employees to assist with the opening of her business. Advise Bongi on how she should go about conducting a meeting with these new employees. There are 7 steps to follow: the first step is to clarify the aim and purpose and the final step is to evaluate. Provide the other 5 steps. (5)
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