https//www-awn.aleks.com/alekscgi/x/lsl.exe/1o_u-lgNslkr7j8P3jH-li0PlvTr4JIONkR4HHkf0EVFNj8DKUvK19KArCeROv2LWHbe2XnDjOVwLOOQOk4SLlzIY-0alRxlGSnuVIM839E Chapter 1: Measure... X ALEKS Claire Leal - Knowledge Search propylene glycol n X Chrome Web Store News Translate Maps YouTube G Gmail Question 9 Imagine that a few tenths of a mole of each compound is dissolved in a liter of water. Then, write down in the third column of the table the chemical formula of the major chemical species that will be present in this solution. For example, you know water itself will be present, so you can begin each list with the chemical formula for water (H2O). Objective Knowledge Check The names and chemical formulae of some chemical compounds are written in the first two columns of the table below. Each compound is soluble in water. -6 mol/L Note: "major" chemical species are those present in concentrations greater than 10 major species present when dissolved in water formula compound H,O. H20, C,H(OH) $2 propylene glycol H2O, OH , CN , HCN NaCN sodium cyanide FeCl iron(II) chloride I Don't Know Submit O 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use Type here to search 4) hp 10 4 1 12 I ins prt sc delete 5 & 1 home end 9 O backspace num lock T U F home K L enter 4 B JK pause t shift end alt ctri X M +t

Mganga is doing a routine analysis in a copper plating factory. He is regularly making up solutions of verypure CuSO4.5H2O. He suspect that a batch of a reagent used to make up a stock solution of CuSO4.5H2Ois impure and it may contains some CuCl2. He asked you to determine the percentage impurity as follows:Dissolve1.500g of a mixture and make up to 1.00L mark.150mL of this solution was treated with 20.00mLof 0.100M AgNO3 to remove 98.6% of chloride as AgCl precipitate.

(a) Compute the repeat unit molecular weight of polybutene unit chemical formula =( C8H16) (b) Compute the number-average molecular weight for a polybutene for which the degree of polymerization is 24,000.

(c) The data set below represents the surface tension data for aqueous solutions of 3- methylbutanoic acid [(CH3)2CHCH₂COOH] at 25°C. [C] [mol.dm³] 0 Y[mN.m'] 72.7 0.009 64.6 0.026 59.0 0.065 51.3 0.135 47.0 (i) Calculate the surface excess of 3-methylbutanoic acid (in mol.m2) and (ii) Hence estimate the molecular cross sectional area (in nm²) for this surface active molecule. (iii) Compare your estimate with the molecular cross sectional area one might expect for n-butanoic acid and account for the difference, if any, between the two surface active molecules.