CONCEPT CHECK No. 2 (Continued): Fill in the blank spaces with your answers for Questions 1 & 2 for the designated (R) & (S) configurations. Follow instructions on the choices given below. Concept Check: Configurational Isomers? (1) Tell whether the two structures in each pair represent enantiomers or two molecules of the same compound in different orientations. Designate each chirality center as (R) or (S). CH, H OH and CH (2) Consider the following pairs of structures. Designate each chirality center as (R) or (S ) and identify the relationship between them by describing them as representing enantiomers, diastereomers, constitutional isemers, or two melecules of the same compound. la) Ha and nd Br CH (b) and (d) and Br a Cnaa WRITE: SS - if both structures have an S chirality center SR - if the first structure given has an S chirality center & the second has R RR - if both structures have an R chirality center RS - if the first structure given has an R chirality center & the second has S XS - if the first structure given is achiral & the second has an S configuration

The EPA has set a limit for uranium in drinking water at 30 micrograms per Liter. This corresponds to a mass concentration of 30ppb. What is the tolerable limit of uranium (in grams) associated with 2.50 kg of water.

= (1) H H H H (2) (3)

24 25 26 A chemistry student weighs out 0.0202 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1800M NAOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits. mL x10 Continue Submit Assignment 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center | Accessibility C 80 000 000 F1 F2 DII DD F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 @ 2$4 % &

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1. The reaction below will give us: a. 2b. 4c. 3d. 3 and 4e. 1

If 10.0 mL of H2SO4 (sp. Gr. 1.50, containing 48.7% of combined SO3 by weight) is diluted to 400 mL, what is the normality of the solution as an acid? (b) What volume of 6.00 M H2SO4 should be added to this in order to make the resulting mixture 1.00N as an acid? FW's : H2SC4 = 98; SO3 = 80

Density of an aqueous solution of nitric acid is 1.43 g/mL. If this solutioin contained 36.0% nitric acid by mass, what volume of solution would be needed to supply 1.50 mmol of nitric acid?

(4) Ag20, NH4OH H.

Moquie $0 219 OWLV2 keAssignment/takeCovalentActivity.do?locator-assignment-take In the following equation for a chemical reaction, the notation (s), (I), or (g) indicates whether the substance indicated is in the solid, liquid, or gaseous state. 2SO₂(g) + O₂(g) →→→2SO3(g) + energy The reaction is Q Search Identify each of the following as a product or a reactant: SO3(g) SO₂(g) 0₂(g) When the reaction takes place energy is Submit Answer 7 L M te OWLv2 | Online teaching and X * Use the References to access important values if needed for this question. Retry Entire Group K CO 144 www.yo up 8 more group attempts remaining L 11 b Answered: For the reaction 2 x + 111 P g P¹ ins prt sc. delete Previous backspace ^ GG 4 home GURN lock 7 home A 6:52 PM 5/14/2023 74 X In