Gven: 10mL of HdDotll=mass of NaOH2.013aMHC-1.0 OMM Naot-1.0OMNaOt(s)+HCI CaqNaulaa+H2O)Atrin J/mol

The number of moles of a species is calculated by expression (1), in which, n is the number of…

Answered: Gven: 10mL of Hd Dotll= mass of…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter14: Mixtures And Solutions

Section: Chapter Questions

Problem 16STP

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Many solutions are found in the home. Some are listed below, with the composition as printed on the label. When no percentage is indicated, components are usually given in order of decreasing amount. When water is present, it is often not mentioned on the label or it is included in the inert ingredients. Identify the solvent and solutes of the following solutions: a.Antiseptic mouthwash: alcohol 25, thymol, eucalyptol, methyl salicylate, menthol, benzoic acid, boric acid b.Paregoric: alcohol 45, opium 0.4 c.Baby oil: mineral oil, lanolin there happens to be no water in this solution-why? d.Distilled vinegar: acetic acid 5
Lauryl alcohol is obtained from the coconut and is an ingredient in many hair shampoos. Its empirical formula is C12H26O. A solution of 5.00 g of lauryl alcohol in 100.0 g of benzene boils at 80.78C. Using Table 10.2, find the molecular formula of lauryl alcohol.
6-40 What is the molarity of each solution? (a) 47 g of KCI dissolved in enough water to give 375 mL of solution (b) 82.6 g of sucrose, C12H22O11, dissolved in enough water to give 725 mL of solution (c) 9.3 g of ammonium sulfate, (NH4)2SO4 dissolved in enough water to give 2.35 L of solution
A 500 mL solution of 0.250 M NH, is required. What is the volume of 28wt \% of NH, (density = 0.899g / m * L ) required to make this solution? (a) 14.8 mL (b) 2.56 mL (c) 28.3 mL (d) 8.46 mL
CALCULATE FINAL CONCETRATION INCLUDE UNITS AND 2 SIG FIGS A 43.5 mL sample of an 7.5 %(mm/vv) KBr solution is diluted with water so that the final volume is 215.5 mL.
Find tha density of 1.19 g/ml and contains 37.0e molarity of Solution of Hcl that has (w/w %) How much volume is need to prepare 100ml of 6.0 M Hclfrom cohcetrated solution?
A 1.787 g sample containing some Fe2+ ion requires 31.50 ml of a 0.02188 M KMnO4solution to reach a pink endpoint. What is the percent by mass of Fe2+ in the sample?
Bleach is a 6.0% (mass/volume) solution of NaClO. That means that there are 6 grams of NaClO(MM = 74.44 g/mol) per 100 mL of bleach. Calculate the molarity (mol/L) of NaClO in bleach tothree significant figures (one extra sig fig).
What is the mas of 25.0ml of octane? D=.702g/cm3
What is the concentration of a 62.0 % (w/w) concentrated nitric acid (HNO3, Mr = 63.0 g/mol) solution (density: 1.32 g/cm3) in mol/dm3 (molarity) and g/dm3 (mass concentraion) units?
The molarity of pure acetic acid is 18.1 M. What is the density of Acetic acid (MW=60.01 g/mole).
How many miliequivalentsare there in 50ml of 0.2M H2SO4

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Gven: 10mL of Hd Dotll= mass of NaOH2.013a MHC- 1.0 OM M Naot-1.0OM NaOt(s)+HCI CaqNaulaa+H2O) Atrin J/mol