8 The illustration to the left represents a mixture of phosphorus ( orange ) and fluorine ( green ) molecules. If the molecules in the above illustration react to form PF3 according to the equation P4 + 6 F2→4 PF3 , the limiting reagent is the number of PF3 molecules formed is| and the number of atoms/molecules in excess is

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 % &

7 1 4 6.3Li +1H → 2He+. - 0²/0 O 1H 4 2He 4 4Be 3 On O

o i MeO XS HCI 3. 40° C A A A 1. Br₂ 2. 2x t-Buo K* CN A CN CN

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

(4) Ag20, NH4OH H.

2 2 X. Fo fff O-S-CH3 01S1O 0-S-CH3 F OTS CH3NH DMSO Br DMF Br EtOH CH3NH DMSO Yor + Br - Br X -S-CH3 -S-CH3 NHCH3 + OTS OP NHCH3 + F

2.) Five standardized dilutions of aqueous lead(11) chromate solution were prepared by adding a volume of 0.0010 M PbCrO4(ag) from a buret and then diluting the solution with deionized water to a total volume of 100.0 mL. Use the provided information to determine [CrO42] in each. Hint: enter the decimal before the scientific notation. Mixture Initial Buret Reading (mL) Final Buret Reading (mL) [Cro,?] (M) 3 2.00 7.10 ? x 105