chemistry student weighs out 0.0266 g of phosphoric acid (H,PO), a triprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled ater. He plans to titrate the acid with 0.1500M NAOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Round your answer to 3 significant digits.

A chemistry student weighs out 0.181 g of phosphoric acid (H3PO. a triprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.0800 M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Round your answer to 3 significant digits. O mL

A chemistry student weighs out 0.0812 g of sulfurous acid (H₂SO3), a diprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1500M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Round your answer to 3 significant digits. mL x10 X S Elld ? ol Ar

Calculating molarity using solute mass A chemist prepares a solution of sodium nitrate (NaNO3) by measuring out 95.5 g of sodium nitrate into a 250. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's sodium nitrate solution. Round your answer to 3 significant digits. mol/L x10 1/3 Ś Olivia V ? 00 A

A chemistry student weighs out 0.170 g of citric acid (H₂CH₂O₂), a triprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1700 M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Be sure your answer has the correct number of significant digits. 0mL x10 X

A student prepares a 0.38 mM aqueous solution of acetic acid (CH3CO₂H). Calculate the fraction of acetic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. 11 % 0.0 x10 X S 0 E

A buret is used to measure the volume of FeCl3 aqueous solution. The starting volume is recorded to be 5.28 mL. The ending volume is recorded as 17.44 mL. What is the total volume of FeCl3 solution dispensed?

A chemistry student weighs out 0.0623 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 0:1400 M 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.

O STOICHIOMETRY OO Jada Dilution A chemist makes 510. mL of zinc oxalate (ZnC,0, working solution by adding distilled water to 300, mL of a 139. µM stock solution of zinc oxalate in water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits. Explhation Check 2021 McGraw H Education All Rights Reserved Terms of Use Privacy Accessibil esc Thank The & 1 2 4 6 8 9 tab W E R T Y { } P A os lock G H K V B N M < "ontrol option command command option

An impure sample contains 1.01 g of impurities and 4.92 g of benzoic acid.  The impure sample is dissolved in water, then heated.  The solution is then cooled.  How many grams of benzoic acid will recrystallize when the solution has cooled? Include the unit and two decimal places in your answer. The solubilities of the impurity and benzoic acid in hot water are found as an item in the Recrystallization Experiment folder.   Solubility Data for Report Questions 10  Compound Cold Water solubility Hot Water Solubility Benzoic acid 0.42 g per 100 mL of water 5.79 g per 100 mL of water Impurity 0.61 g per 100 mL of water 4.62 g per 100 mL of water