Macmillan Learning A solution of F is prepared by dissolving 0.0990 ± 0.0004 g NaF (molar mass = 41.989 ± 0.001 g/mol) in 163.00 ± 0.07 mL of water. Calculate the concentration of F in solution and its absolute uncertainty. Significant figures are graded for this problem. To avoid rounding errors, do not round your answers until the very end of your calculations. 0.014 Incorrect M + -5 5.9 ×107 Incorrect M

Macmillan Learning A solution of F is prepared by dissolving 0.0990 ± 0.0004 g NaF (molar mass = 41.989 ± 0.001 g/mol) in 163.00 ± 0.07 mL of water. Calculate the concentration of F in solution and its absolute uncertainty. Significant figures are graded for this problem. To avoid rounding errors, do not round your answers until the very end of your calculations. 0.014 Incorrect M + -5 5.9 ×107 Incorrect M

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section: Chapter Questions

Problem 79QRT

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Solve correctly please. (Gpt/Ai wrong ans not allowed)
A sodium chloride solution was prepared by dissolving 0.0998 \pm 0.0005 g NaCI (58.443 \pm 0.001 g/mol) in 100.00 \pm 0.08 mL of water. Calculate the concentration of NaCl in the solution and its absolute uncertainty. Report the concentrationwith the appropriate number of significant figures.
A solution of F− is prepared by dissolving 0.0944±0.0006 g NaF (molar mass = 41.989±0.001 g/mol) in 162.00±0.06 mL of water. Calculate the concentration of F− in solution and its absolute uncertainty. To avoid rounding errors, do not round your answers until the very end of your calculations.
7. 22 This question is about several salts. (a) A hydrated salt, compound A, is analysed and has the following percentage composition by mass: Cr, 19.51%; CI, 39.96%; H, 4.51%; O, 36.02%. Calculate the formula of compound A, showing clearly the water of crystallisation. Show your working. formula of compound A = (b) A student carries out an experiment to determine the amount of water of crystallisation in the formula of another hydrated salt. The student intends to remove the water by heating the hydrated salt. A diagram of the apparatus used by the student is shown below. crucible pipeclay triangie The student adds the hydrated salt to the crucible and weighs the crucible and contents. The student heats the crucible and contents and allows them to cool. The student weighs the crucible and residue. The student's results are shown below. 16,84 Mass of crucible + hydrated salt/g 16.26 Mass of crucible + residue after heating/g
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Give a clear handwritten answer with explanation....complete the following given...
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A concentration solution of hydrochloric acid has a concentration of 1.202 (± 0.005) M. If 14.00 (± 0.07) mL of this solution is placed in a 250.00 (± 0.05) mL volumetric flask and water is added to the mark, what is the absolute uncertainty reported to the correct number of significant figures for the dilute concentration of HCl?
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