Part AThe forensic technician at a crime scene has just prepared a luminol stock solution by adding 19.0 g of luminol into a total volume of 75.0 mL of H20.What is the molarity of the stock solution of luminol?Express your answer with the appropriate units.• View Available Hint(s)molarity of luminol solution = 1.43 MSubmitPrevloue AnswersCorrectPart BBefore investigating the scene, the technician must dilute the luminol solution to a concentration of 8.00x10 M. The diluted solution is then placed in a spray bottle forapplication on the desired surfaces.How many moles of luminol are present in 2.00 L of the diluted spray?Express your answer with the appropriate units.> View Available Hint(s)moles of luminol = 0.120 mol Part CWhat volume of the stock solution (Part A) would contain the number of moles present in the diluted solution (Part B)?Express your answer with the appropriate units.> View Available Hint(s)Tempjetes Symbols undo redo teset keyboard shortcuts Helpvolume =ValueUnits

Mass of Luminol = 19.0 g Molar Mass of Luminol = 177.16 g/mole Moles of Luminol =Mass of luminol /…

What volume of the stook solution (Part A) would contain the number of moles present in the diluted solution (Part B)? Express your answer with the appropriate units. > View Available Hint(s) Tempjetes Symbols uhdo rego teset keyboard shortcuts Heip volume Value Units

What volume of the stook solution (Part A) would contain the number of moles present in the diluted solution (Part B)? Express your answer with the appropriate units. > View Available Hint(s) Tempjetes Symbols uhdo rego teset keyboard shortcuts Heip volume Value Units

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A 623 mL NaCl solution is diluted to a volume of 1.45 L and a concentration of 4.00 M. What was the initial concentration? Express your answer with the appropriate units. • View Available Hint(s) HA M1 = 8.88 M Submit Previous Answers X Incorrect; Try Again; 4 attempts remaining Review your calculations and make sure you round to 3 significant figures in the last step.
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9:06am ructions t to click Submit when completed! Question 17 Determine the molarity of a solution formed by dissolving 861 g of Mgl2 in enough water to yield 474 mL of solution. * Previous No new data to save. Last checked at 9:21am le Drive MacBook Air 80 888 esc F1 F2 F4 F5 F6 F7 @ 2$ 4 & 6. 7 8. Q W E R. T Y © 2N
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to click suf our answers before submitting. DQuestion 27 Determine the molarity (M) of a solution formed by dissolving 682.3 g of Mgl2 in enough water to yield 588.5 mL of solution. Next e Drive * Previous Submi Not saved MacBook Air 80 F8 esc F5 F6 F7 F3 F4 F1 F2 #3 & 2$ 4 @ 7 9. W E R Y tab S F caps lock Z shift C V * 00
Use the data below to determine the Molarity of KMnO4 to THREE decimal places. (MM sodium oxalate = 134 g/mol) mass of sodium oxalate (g) 0.099 initial buret reading (mL) 0.44 final buret reading (mL) 16.64 Type your answer...
Part D Find the number of moles of water that can be formed if you have 114 mol of hydrogen gas and 52 mol of oxygen gas. Express your answer with the appropriate units. • View Available Hint(s) Value Units Submit Part A 1.4 L of a 2.50 MHNO, solution is added to water so that the final volume is 7.0 L. Express your answer to two significant figures and include the appropriate units. ? Value Units Submit Previous Answers Request Answer nta amainina Part B Water is added to 0.50 L of a 8.1 M NaF solution to make 2.0 L of a diluted NaF solution. Express your answer to two significant figures and include the appropriate units. HẢ Value Units Submit Request Answer
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Calculate the grams of solute needed to prepare each of the following. Part A You may want to reference (Pages 298 - 305) Section 9.4 while completing this problem. 2.00 L of a 2.00 M NaOH solution Express your answer with the appropriate units. HẢ ? Value Units Submit Request Answer Part B 4.80 L of a 0.195 M CaCl2 solution Express your answer with the appropriate units. HẢ ? Value Units Submit Request Answer