An impure sample of 0.1002 g benzoic acid underwent purification by recrystallization. A mass of 0.0542 g of white solid benzoic acid was obtained. Calculate the % purity of the initial sample. Show calculations and report the result with correct number of significant figures.

Please help me find weight percentage of the unknown solution,  Thank you in advance Data attached below: Data of unknown NaCl solution (by weight) weight of weighing bottle and solution: 34.91g weight of weighing bottle: 23.91g weight of the solution: 11.00g  Initial buret reading 33.28ml Final buret reading: 43.26ml The volume of the solution; 9.98 ml  The density of solution: 1.10  Weight % of unknow solution: ?

A chemistry student weighs out 0.0457 g of formic acid (HCHO,) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1100M 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, Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center | Acces: LOC 80 F Cloudy DELL PrtScr Insert Delete F10 F11 F12 F7 F8 F9 F4 F5 F6 F1 F2 F3

Current Attempt in Progress A 66.7 mL sample of 18.0 M sulfuric acid was diluted with enough water in a volumetric flask to make 5.00 x 102 mL of solution. A 25.0 mL aliquot of this solution was then further diluted to a volume of 1.50 x 102 mL. What is the molarity of the solution after the second dilution? M eTextbook and Media Hint Save for Later Attempts: 0 of 2 used Submit Answer Type here to search 多 米 insert prt sc %23 %24 & 2 3 4 8 backspace Q W R Y U A D K B N pause M alt alt ctrl

8 = filled CHM-202 Lab 1 Solids and Solutions Rev 1 G6-2022 Results: 1. Models of Crystalline Unit Cells Atomic Radius (radius of styrofoam ball) Volume of one atom (one ball, 4/3r¹) Measured unit cell length (1) [1.3] No. Atoms per cell [1.3] Ratio of 1/r [1.3] Geometric unit cell length (1) [1.5a] Volume of atoms in cell [1.5c] Total 3 Volume of Unit Cell [1.5c] Percent vol filled [1.5d] Percent free space. [1.5d] I atom Simple Cubic SC 6.15mm 118 6.9 172 Raw Data (Temperature vs. Time) Trial Time CHM-202 Lab 2 Freering Point Depression Rev2 06-2022 232.6 Temp Time d= 6.9 r = 3.24 Sum v=172²³² Body Centered Cubic BCC 8 lan a atom 2.3 7.96 344 531.45 B. Cyclohexane Solutions (Trial 4 if needed) Temp Time (include units!) (include units!) Face Centered Cubic FCC (CCP) 10.8cm 4 atom 7/12 3.13 Temp 5.26 688 1259-73 Time the pieces are not Temp

You are given a concentrated stock solution of 3.0 M sucrose, and you’re asked to do a serial dilution of 1:25, 1:10, and 1:5. What is the final concentration of sucrose (in mM) you achieve after these dilutions. Show your unit conversions step by step