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The atomic mass of boron is 10.81 g/mol. The two naturally occuring isotopes are B-10 with a mass of 10.0129 amu and B-11 with a mass of 11.0093 amu. Determine the percent of naturally occuring B-10.
What is the value of Ksp for Ag2SO4 if 5.54 g is soluble in 1.00 L of water?
The atomic mass of element X is 33.42 amu. A 21.83-g sample of X combines with 80.32 g of another element Y to form a compound XY. Calculate the atomic mass of Y.
Compute w when 181 grams of iron (III) oxide (MM = 159.7 g/mol) combines with excess carbon(C)) to produce carbon dioxide(CO 2 ) gas at 359 K: express your answer in kilo joules
A mixture consists of 323 mg of methane, 165 mg of argon, and 223 mg of nitrogen. The partial pressure of nitrogen at 275 k is 19 kPa.
What is the kinetic energy of this soccer baal? Mass of soccer ball is= 0.38 kg and fits this description out of these four given cations ?
What is the limiting reagent in the reduction of C10H16O with NaBH4 assuming you initiate it with.1 g of sodium borohydride and .1 g of camphor?
A 2.30 L sample of O2(g) was collected over a liquid at a total pressure of 785 torr and 25°C. When the O2(g) was dried (vapor of that liquid removed), the gas had a volume of 1.86 L at 25°C and 785 torr.
Consider the following isomerization reactions of some simple sugars and values for their standard Gibbs free energy ΔG °:
From 5g of benzopinacol you obtained benzopinacolona 75% crude. The yield after recrystallization was 2 grams. benzapinacol molecular weight = 366.46 g / mol benzopinacolone molecular weight = 348.44 g / mol determine:
16.57 The complex [Ni(NH3)6]2+ has a ligand field splitting of 209 kJ·mol-1 and forms a purple solution. What is the wavelength and color of the absorbed light.
Determine the concentration of the original Na 2 C 2 O 4 solution and disodium oxalate in the presence of excess acid.
Suppose that 25 g of each of the following substances is initially at 28.0degrees C. What is the final temperature of each of the following substances upon absorbing 2.35 kJ of heat.
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