Can you answer both, parts a and b as thoroughly as possible, please? Thank you.

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 % &

Very dilute amounts of ions and molecules are often reorted in parts per million (ppm). The units for ppm is mg solute per liter of solvent (mg/L). Given that 1.00mL of pure water weighs exactlt 1.00g, show that 1.00L of water weighs one million milligrams.

A 1.53 g sample of a mixture of FeCl2 and Fe(NO3)2 is treated with excess AgNO3(aq). The precipitate is filtered off, dried and weighed. The dried precipitate weighs 1.92 g. What is the percentage by mass of FeCl2 in the original mixture? Your answer must be accurate to two significant digits. Keep several extra digits in your calculations and round off only at the end. Do not include the percent sign (%) as part of your answer.     Molar masses (in g mol−1): N, 14.01 O, 16.00 Cl, 35.45 Fe, 55.85 Ag, 107.9

Deionized water is added to 138.0 mL sample of 1.103 M oxalic acid to dilute it to 0.436M. What volume of water, in milliliters, was added to dilute the sample? Enter your answer in the box, rounded to the correct number of significant figures. 

Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD50 value for humans is the same as for rats. Calculate the number of mg of Allura Red present in an 8 fluid ounce glass of the beverage you used in this lab. Assume that the concentration of Allura Red in the beverage is 0.000054 M. The molar mass of Allura Red is 496.42 grams/mol 1 fl oz = 29.5735 mL Do not include units with your answer.

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