A 0.456-g sample of an ore is analyzed for chromium and found to contain 0.560 mg Cr2O3.  Express the concentration of Cr2O3 in the sample as parts per thousand. (Report answer with 4 SF)

Q: Calculate the molarity of 8.25 mL of 0.0417 M KI diluted to 12.0 mL with water. Answer in M.

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: 3. Determine the normality of 3200mL HCI if 25.27g of acid was used.

A:

Q: 150 mg of NazC2O4 containing solution is titrated with a KMNO4 solution with the corretion factor…

A: Given: Volume of KMnO4 consumed = 29 mL mass of Na2C2O4 titrated = 150 mg Molar mass of Na2C2O4 =…

Q: K2Cro4 (aq) + 2AgNO3 (aq) Ag2CrO4 + 2KNO3(aq) how many moles of precipitate could form if 40.0mL of…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: SAMPLE: CANE VINEGAR % acidity in label: 4.5% %purity of KHP: 99.80% FORMULA WEIGHT of KHP: 204.22…

A: The NaoH solution is standardized by KHP. Then standerd solution of NaOH is used to find the…

Q: What is the percent magnesium hydroxide, if a sample of magnesia magma weighing 5.2430g when…

A: By law of equivalence : Number of equivalents of Mg(OH)2 = equivalents of H2SO4 + equivalents of…

Q: How many milliliters of a stock solution of 11.2 M HNO3 would you have to use to prepare 0.360 L of…

A: Here given that (from part a), the molarity of HNO3 stock solution = 11.2 M. The sample volume taken…

Q: The exact concentration of a Na2S2O3 standard solution was determined by using KIO3 stock solution.…

A: Mass of KIO3 = 0.2189 g Molar Mass of KIO3 = 214.00 g/mol Volume of KIO3 solution prepared = 200 cm3…

Q: Calculate the eq per liter of 0.321g Na2CO3Na2CO3 when it is mixed in a 250ml solution. (MM Na2CO3=…

A: The normality of a solution is an important method which is used to indicate the concentration of a…

Q: How many milliliters of 0.112 M Na2 CO3 will completely react with 27.2 mL of 0.135 M HNO3 according…

A: Since you have asked a question with  multiple sub-parts, we will solve  first three sub-parts for…

Q: You made 100.0 mL of a lead(II) nitrate solution for lab but forgot to cap it. The nextlab session…

A: Given data contains, Volume of lead (II) nitrate is 100.0 mL. Volume left is 80.0 mL. Addition…

Q: What mass (in grams) of precipitate forms, if the percent yield is 45.9%?

A: Given data:  Copper II  sulfate concentration=0.100M…

Q: [Review Topics] [References) Use the References to access important values if needed for this…

A: Volume of required solution = 50 ml ( W/v)% = 7.04 %

Q: Calculate equivalent weight of unknown acid using the following information: Mass of unknown acid=…

A: Given,Mass of an unknown acid = 0.1351 gVolume of NaOH used to titrate the acid = 11.5…

Q: 5. Write the chemical reaction that took place in Experiment B. 6. In Experiment B, complete the…

A: Experiment B. Surface Area: Given that,1. Weigh a small iron nail to the nearest hundredths of a…

Q: Whatis the molarity of a vinegar (acetic acid) solution if 50.00 mL were titrated to a…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: Review Topica) References) Use the References to access important values if needed for this…

A: The question is based on the concept of mass percentage.   amount of substance present in hundred…

Q: If you have 155 mL solution of a 0.762 M FeCl3 solution, how many moles of FeCl3 are contained in…

A: Given-> Volume of solution = 155 ml = 0.155 L  (1L = 1000ml) Molarity = 0.762  M

Q: To what volume should you dilute 54 mL of a 13 M stock HNO3 solution to obtain a 0.106 M HNO3…

A: The given information is as follows: The initial volume of the HNO3 solution V1= 54 mL The initial…

Q: How many milliliters of 0.225 M HBr would be needed to react completely with 25.0 mL of 2.24 M…

A: Train track method is generally use for unit conversion.

Q: The salt content was extracted from a 12.0000g junk food sample. The extract was diluted to…

A: Given :  Weight of junk food sample = 12.0000 g  Volume of AgNO3 solution = 23.75 ml  Concentration…

Q: 39.2 mg NaCl in 126.1 mL of solution Express the molarity in moles per liter to three significant…

A:

Q: SAMPLE: CANE VINEGAR % acidity in label: 4.5% %purity of KHP: 99.80% FORMULA WEIGHT of KHP: 204.22…

A: Volumetric titration is quantitative analytical technique in which volumes of a two reactants are…

Q: The molar mass of potassium hydrogen phthalate is 204.22 grams per mole. To determine the molarity…

A: Reaction:' KHP (aq) + NaOH (aq) --> KNaP (aq) + H2O (l)  Given:' mass of KHP = 1.32 g molar mass…

Q: The molarity of HC2H3O2, M for trail 1,2,3.

A:

Q: Be sure to answer all parts. How many grams of CaCO3 will dissolve in 2.60 × 10² mL of 0.0540 M…

A: Since Ca(NO3)2 is completely soluble in water. Hence concentration of Ca2+ ions in the solution…

Q: A student needs to dilute a 0.38 M Pb(NO,), solution to make 97.0 mL of 0.22 M Pb(NO,),. Set up the…

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Q: Calculate the molarity of a sodium hydroxide solution if 50.0 ml of this solution was com- pletely…

A:

Q: What is the mass in grams of KBr in 0.400 Lof a 0.350 M solution? 0.400 0.350 STARTING AMOUNT 0.400…

A: Given:   The volume of solution is 0.400 L. The molarity of KBr solution is 0.350 M.

Q: solution is formed from mixing 150 mL of 0.0069 M AgNO3 solution with 440 mL of 0.0018 M KBr. What…

A: The question is based on the concept of solubility product Principle.   it states that a weak…

Q: A solution with a concentration of copper(II) sulphate is 0.30 mol/L. What mass of sulphate ions…

A: Concentration of copper(II) sulphate (CuSO4) is 0.30 mol/L Volume of the solution = 300 mL = 300 ×…

Q: Solution AII. Calculate the volume of concentrated ~ 0.1250 M copper (II) acetate monohydrate…

A: The required solution is 25 mL of 0.05 M copper(II) acetate monohydrate from a stock solution of the…

Q: SAMPLE: CANE VINEGAR % acidity in label: 4.5% %purity of KHP: 99.80% FORMULA WEIGHT of KHP: 204.22…

A: Molarity and average molarity of NaOH, acetic acid and carbonic acid calculated as given below.

Q: 1. What is the concentration, in parts per million, of a solution in which 600 grams of aluminum…

A: We have to calculate the concentration in ppm.

Q: What is the molality of lithium ions in an aqueous solution made up of 0.302 m LI:PO. assuming the…

A: Given: The molality of Li3PO4 is 0.320 m.

Q: The antibiotic gramicidin A can transport Na+ ions into a certain cell at the rate of 5.0 × 107 Na+…

A: The rate of flow of ions is 5.0×107 Na+ ions per channel.No of moles of sodium ions required to…

Q: Describe how to prepare 100.0 mL of 0.0600 mol/L copper(I) sulfate solution from a 0.304 mol/L stock…

A: Given: The molarity of stock solution is 0.304 mol/L. The molarity of final solution is 0.0600…

Q: A 623 mL NaCl solution is diluted to a volume of 1.45 L and a concentration of 4.00 M. What was the…

A:

Q: Choose the letter of the correct answer 29.) If you are given a formula of a compound as C7H16 and…

A: Given options are : A. %composition by mass of C B.% composition by mass of H C. Molecular weight of…

Q: Volume vinegar used (mL)= 5.00 mL % from labe= l5 % Molarity of NaOH = 0.0976 M Titration volume…

A: The average volume of NaOH, Vavg, used in mL and L and the number of moles of NaOH is;…

Q: How many milliliters of a stock solution of 6.60 M HNO3 would you have to use to prepare 0.150 L of…

A: Given data : Molarity of concentrated HNO3 (M1) = 6.60 M Volume of Diluted solution (V1)= 0.15 L…

Q: Raferences) The concentration of a certain sodium hydroxide solution was determined by using the…

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Q: A 2.00 L bottle of concentrated BBQ solution was purchased for the cookout. The solution contained…

A: Volume=2L Mass=868.8g Molar mass of BBQ=36.5g/mol Molarity=?

Q: What willl be the Molar concertration of the 473.49  HCl solution prepared from 4 mL of concentrated…

A: 1- First calculate the moles of HCl :  mass of HCl = [ Density × Volume ]  mass of HCl = [ 1.18g/mL…

Q: QUESTION NO. 1: A 0.097 N silver nitrate solution of 56.3 ml was used to titrate two samples of…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: 1. [1] Volume of acid (mL) 25.0 25.0 25.0 [2] Burette reading of NaOH, initial (mL) 2.16 1.14 2.79…

A: All calculation and values have been illustrated in the table attached in step 2. (Values have been…

Q: It's hard to imagine but Tweety Bird did the Redox Titration of Vitamin C experiment. Tweety used…

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Q: help with calculations DATA: EXPERIMENT 16 PART 1: Known CaCl₂ solution Molarity of Na2CO3 solution:…

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Q: __________H3PO4______________ + Ca(OH)2 →__________ HOH + Ca3(PO4)2 What is the molar concentration…

A: Given: Vol of H3PO4 = 325.25 mL Vol of Ca(OH)2 = 475.60 mL Concentration, of Ca(OH)2 =0.465 M   The…

Q: A 758 mL NaCl solution is diluted to a volume of 1.02 L and a concentration of 6.0o M. What was the…

A: By help of Following formula , we can calculate the initial concentration or Molarity of the NaCl…