Please answer question 2 Part A and B Part BA student placed 18.5 g of glucose (C6 H12O6) in a volumetric flask, added enough water to dissolve the glucose byswirling, then carefully added additional water until the 100. mL mark on the neck of the flask was reached. The flaskwas then shaken until the solution was uniform. A 20.0 mL sample of this glucose solution was diluted to 0.500 L.How many grams of glucose are in 100. mL of the final solution?Express your answer to three significant figures and include the appropriate units.• View Available Hint(s)HÀ?ValueUnits Molarity (M) is defined as the number of moles of solutedivided by the solution volume expressed in liters:Part Amoles of solutemolarity =%3Dvolume of solution (L)The following five beakers, each containing a solution of sodium chloride (NaCl, also known as table salt), wereFor example, 1 M HCl contains 1 mol of HCIdissolved in 1 L of solution. When a concentratedfound on a lab shelf:solution is diluted, the number of moles of solute staysconstant; only the volume of the solution is changed. Adilution indicates an increase in solution volume and,therefore, the concentration of the solution mustdecrease. If you add more water to the HCl solutionconsidered above, so that now the volume is 2 L , theBeakerContents1200. mL of 1.50 M NaCl solution100. mL of 3.00 M NaCl solution3150. mL of solution containing 21.0 g of NaClnumber of moles remains the same but the volume is4100. mL of solution containing 21.0 g of NaCldoubled. Hence the molarity of the solution is now 1 molin a 2 L solution, that is, (1/2) M or 0.5 M.5300. mL of solution containing 0.450 mol NaCiThe number of moles of solute before and after dilutionArrange the solutions in order of decreasing concentration.can be calculated by multiplying molarity times volume.We can set up the following equations:Rank from most concentrated to least concentrated. To rank items as equivalent, overlap them.moles of solutemolarity x volume• View Available Hint(s)M; x V = Mt X Vịwhere Mi is the initial molarity (of the concentratedsolution), Vị is the initial volume, Mf is the final molarity(of the diluted solution), and Vị is the final volume.ResetHelpIn the HCl solution example the initial molarity is 1 M,the initial volume is 1 L, the final volume is 2 L, and themolarity is 0.5 M. Thus the number of moles present in| 4] 2][3] 51]these solutions isM; V = Mt V = 1 M × 1 L = 0.5 M × 2 L1 molMost concentratedLeast concentrated2.

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Part B A student placed 18.5 g of glucose (C6 H12 O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 20.0 mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution? Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) "i HẢ ? Value Units

Part B A student placed 18.5 g of glucose (C6 H12 O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 20.0 mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution? Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) "i HẢ ? Value Units

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter6: Types Of Chemical Reactions And Solution Stoichiometry

Section: Chapter Questions

Problem 123CP: The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental...

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