QUESTION 21 I1 22 mL of 0 137M MgCin is needed to completely react 15 ml of AgNO3 solution, what is the molarity of AGNO3? Hint First balance the double displacement reaction between MgCl2 (aq) and AGNO3 (aq). Then calculate the number of moies of magnesium chloride Then convert that to moles of silver nitrate Then work out the concentration of silver nitrate Do each step separately instead of all in one line to check that you definitely understand the meaning of each step instead of a process of just units cancelling The Molanty unit symbol is M

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a) How many moles of base were required to react completely with the acid in this reaction? ____  mol Ca(OH)2    b) How many moles of HCl were present in the original 25.00 mL of acid? _____ mol HCl  c) Which of the following is the molarity of the original HCl solution?      A) 0.0584 M      B) 0.352 M      C) 1.46×10-4 M      D) 0.146 M      E) 0.233 M

Question 26- (please look at the attached images for a speecial periodic table that you may need to use to solve this question, please show all of your work so I can understand going forward.) a) What is the volume, in mL, of a 0.705 M HBg solution needed to react completely with 25.0 mL of 0.315 M Wn2JeO3 solution?  2HBg(aq) + Wn2JeO3(aq) → 2WnBg(aq) + H2O(l) + JeO2 (g)

we can precipitate out solid lead (II) iodide from an aqueous lead (II) nitrate solution by adding potassium iodide. if we have 500. mL of 0.632 M lead(II) nitrate solution and excess potasssium iodide how much solid lead(II) iodide will form in grams 291 72.8 146 or 0.316

I have three solutions which is A, B, and C: calcium hydroxide, potassium sulfate, and sodium chloride. Combining B and C results in the formation of a precipitate, but neither solution forms a precipitate with A. Adding iron(II) nitrate to each solution only produces a precipitate with C. What are the unknowns? A: B: C:

Question 25 A 45.00 mL sample of NaOH is titrated with 22.50 mL of 1.750 M HCI(aq) according to the balanced equation below. What is the molarity of the NaOH solution? NaOH + HCI → NaCI + H,O a. 0.8750 M b. 3.500 M C. 1.750 M d. 1.674 M e. 0.08750 M O a O b Od nere to search

How many mL of 0.925 M nitric acid are necessary to completely react with 964.0 mL of a 0.250 M calcium hydroxide solution? A) 13.02 mL B) 0.521 mL C) 26.05 mL D) 6.51 mL 身

please write all steps clearly 10

15. Iron(II) can be oxidized by an acidic K2C12O7 solution according to the net ionic equation Cr2072 + 6FE2+ + 14H* → 2Cr3+ + 6Fe3+ + 7H2O If it takes 26.0 mL of 0.0250 M K2Cr2O7 to titrate 25.0 mL of a solution containing Fe2*, What is the molar concentration of Fe2*?