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What is the molar concentration of Fe2+ ion in an aqueous solution if 35.50 mL of 0.103 M KBrO3 is required for complete reaction with 11.00 mL of the Fe2+ solution? The net ionic equation is:
6Fe2+(aq)+BrO3-(aq)+6H+(aq)→6Fe3+(aq)+Br-(aq)+3H2O(l).
What is the molar concentration of As(III) in a solution if 24.95 mL of 0.115 M KBrO3 is needed to titrate 54.45 mL of the As(III) solution? The balanced equation is
3H3AsO3(aq)+BrO-3(aq)→Br-(aq)+3H3AsO4(aq)
What is the mass percent Fe in a 0.1855 g sample if 12.32 mL of a 0.1015 M Sn2+ solution is needed to titrate the Fe3+?
Express your answer using four significant figures.
Will Co(OH)2 precipitate from solution if the pH of a 0.020M solution of Co(NO3)2 is adjusted to a value of 8.00? Ksp for Co(OH)2 = 1.6 x 10-15
A solution of ammonia and water contains 3.00×1025 water molecules and 5.10×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
An industrial factory utilizes electrolysis in its production. Explain how many minutes would a solution of Co3+ have to be electrolyzed with a 3.810 a current to plate out 2.68 g of Co
What is the % by mass of CaCl2.2H2O in the salt mixture B. how many grams of the excess reactant K2C2O4.H2O reacted in the mixture C. How many grams of the K2C2O4. H2O in the salt mixture remain unreacted
The pKa values for the three ionizable groups on tyrosine are pka (-COOH)= 2.2, pKa (-NH3+)= 9.11 as well as pKa (-R)= 10.07. In which pH ranges will this amino acid have the greatest buffering capacity
A block of platinum is 6.00 cm long, 3.50 cm wide, and 4.00 cm thick has a mass of 1802g. What is the density of platinum
If the desalination plant wants to produce 1400.0 gallons of drinking water per day, how many gallons of brine must the plant take in per day. The density of fresh water is 1.000 g/cm3. The density of brine is 1.025 g/cm3. What mass of waste brine..
If 57.0 of solution is needed to precipitate all the sulfate ion in a 756 sample of , what is the molarity of the solution?
physiological saline solution contains 0.90 nacl solution used in this intravenous injections. determine how many grams
Which is a redox reaction. identify reducing and oxidizing agents. a) CH4 burns in oxygen to produce carbon dioxide and H2O. b) copper metal forms copper (I) oxide on exposure to air. c) iron rusts to form Fe2O3.
An industrial wastewater contains 2000 mg/L of total Ammonia as N, 490 mg/L of total Ni and has no inorganic carbon. The PH = 2.8. Using the diagram calculate to what pH the waste must be adjusted to so that the total Ni concentration is 1 mg/L.
If 200g of Argon gas (Ar) expands from the initial temperature of 150 degrees celcius and in the process do 3.15 kJ of work and absorbs 1.52 kJ of heat what is the final tempurature of the gas
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