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A particular type of stainless steel contains 11.0% chromium by mass and has a density of 7.91 g/cm3. a) Calculate the number of chromium atoms in a 2.0 cm by 1.0 cm by 7.0 cm piece of this stainless steel. b) Calculate the number of 52Cr atoms in the above sample. The natural abundance of 52Cr is 83.789%.
If the final concentration of CN- is 0.5 M at equilibrium, what is the equilibrium concentration of uncomplexed Fe3+ ions The Kr of Fe(CN)6 3- is 1.0 x 10^42
What functional group is present in glucose? Is glucose a reducing or nonreducing carbohydrate?
Calculate the pH of a buffer that is 0.158 M HClO and 0.099 M NaClO. The Ka for HClO is 2.9 x 10-8
Disregarding any other losses and treating the animal as a closed system, what was the change in internal energy of the animal?
The equilibrium pressure of H2 over solid uranium and uranium hydride, UH3, at 500 K is 139 Pa. Calculate the standard Gibbs energy of formation of UH3(s) at 500 K.
What is the molarity of a solution that contains 41.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol}) in 280 mL of solution?
If you a litre (1000mL) bottle of oil in your engine, how much heat is produced in kcal?In BTU To solve this problem you must know the density of motor oil is .82 g/mL.
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6 (g)+ H2 (g) -> 2CH4
first generation computers were powered by nickel cadium batteries which generated 1.20 V based on the following reaction Cd(s)+2 NiO(OH)(s)+2 H2O(l)-> Cd(OH)(s)+2 Ni(OH)2(s)
1401g sample of a purified carbonate was dissolved in 50ml of a .1140 M HCl and boiled to eliminate CO2. Back titration of the excess HCl required 24.21ml of .09802M NaOH. Identify the carbonate.
Nitroglycerin, an explosive compound, decomposes according to the equation below? Nitroglycerin, an explosive compound, decomposes according to the equation below.
in the synthesis of divanillin the first step in the mechanism of this reaction involving vanillin is the formation of phenoxy radical by abstraction of the phenoic H atom
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