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An unknown metal hypochlorite salt, M(ClO)2, is subjected to analysis by iodometric titration: the salt is dissolved in dilute sulfuric acid, treated with excess aqueous KI,and then titrated with Na2S2O3. The unknown metal ion(M2+) is completely unreactive in the titration. However, all of the hypochlorite ion bonded to the metal reacts completely with Na2S2O3. Iodometric titration of an acidified 0.0499 g sample of M(ClO)2 required 28.42 mL of 0.05521 mol/L Na2S2O3 to reach the equivalence point. What is the identity of metal M?
Compute each project's IRR, NPV and NPI and obtain the variance of NPV assuming that cash flows are independent
Corporation XYZ had decided to reduce the butterfat content of milk they are producing resulting to the milk to almost be only 2% milk. This in turn decreases the amount of butter and cream that the dairy farms can produce.
If a reaction vessel contains 50.0 of carbon dioxide and 25.0g lithium hydroxide what mass of lithium carbonate can be produced?
In developing a subdivision, the developer is required to build the roads to the city building code specifications and to deposit an amount which will allow the city to repave the roads every four years for an indefinite period of time. The costs ..
An argon ion laser which operates at 488.2 nm is used to excite the tagged proteins and observe fluorescence. A 5 µM solution gives a signal of 0.852 relative fluorescence units. What is the wave number of the laser light at 488.2 nm?
What event brought federal attention to elementary school education?
(Amounts on the balance sheet are in millions of dollars.) Assets - Reserves $15.90 Loans $150.00 Securities $34.10 Total - $200.00 Liabilities + Capital - Transactions deposits $180.00 Equity capital $20.00 Total - $200.0 Calculate the bank's exc..
How are the Walt Disney Corporation’s security operations integrated into the overall business operations? How are non-security personnel and environmental features used for security purposes and how do security personnel contribute to the overall mi..
Economics plays a role in personal finance. Describe the role that economics plays in your personal financial plan - Explain the role the government plays in personal finance
The "Big-Deal" Company has purchased new furniture for their offices at a retail price of $100,000. An additional $20,000 has been charged for insurance, shipping, and handling. The company expects to use the furniture for 10 years (useful life = ..
You have 75.0 mL of a 2.50 M solution of Na2CrO4(aq). You also have 125 mL of a 1.52 M solution of AgNO3(aq). Calculate the concentration of CrO4 2- after the two solutions are mixed together.
A 1.25 g sample of dry ice is added to a 765 mL flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 715 mm Hg. The dry ice is allowed to sublime (convert from solid to gas) and the mixture is allowed to return to 25.0 C. Wha..
Aspirin has a pKa of 3.5 and is neutral in its protonated form (i.e. HA). Acetaminophen has a pKa of 9.5 and is also neutral in its protonated form. Predict the elution order of the two compounds in capillary electrophoresis.
The solubility of strontium fluoride (SrF2) in water is 111.5 mg/L. What is Ksp for strontium fluoride (molar mass = 125.62 g)?
Calculate the mass of gasoline (in kg) needed to fill up a small tank which has a capacity of 3.0 L. Assume that the density of gasoline is 0.80 g/mL
Calculating Kc, Given the amount of reactant in grams in a container at a temperature and amount produced in moles, calculate Kc:
How much energy would be required to melt 48 g of HCl at its melting point of -110.8C? Hfus for HCl is 14.2 cal/g and Hvap for HCl is 98.7 cal/g.
How much heat is required to warm 1.20 L of water from 20.0 degrees C to 100.0 degrees C ? (Assume a density of for the water.)
Active ingredient in household bleach is NaOCl. Find % concentration (w/v) in household bleach. (Mass of NaOCl per mL of solution) *Atomic mass of NaOCl = 74.44217 Question 2: Using the % w/v of NaOCl on the bleach bottle, calculate the percent er..
Calculate a lattice energy for (in kilojoules per mole) using the following information.
36.0% sodium chloride or table salt, and the rest being sodium bicarbonate or baking soda, How many grams of baking soda are present in the sample?
What two properties of ATP make it ideally useful for a form of energy storage in cells? Describe why the hydrolysis of ATP is highly exergonic (give at least two reasons).
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