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You react 2.33 g of iron (III) with 5.0 mL of 0.500 M solution of sodium phosphate to form iron (III) phosphate and sodium chloride. How many grams of sodium chloride ought to be produced? Hint: first write the balanced reaction
When 5.0 g of an unknown compound is dissolved in 200.0 g of carbon tetrachloride, CCl4, the freezing point of the solution is -31.8 degC. The freezing point of pure carbon tetrachloride is -22.3degC
One mole of an ideal gas (Cv=3/2R) is heated at (a)constant pressure and (b) constant volume from 298Kto 353K. Calculate delta_S for both cases.
what are some valid resonance structures for cs2?other than scs can i have s triple bonded to c single bonded to s?
An ideal gas mixture contains 35% helium, 20% methane, and 45% nitrogen (by volume) at 2.00 atm absolute and 90 C. Calculate: (a) The partial pressure of each component
Critically evaluate your evidence on whether the limonene isolated from orange peels
An electron in the n = 7 level of the hydrogen atom relaxes to a lower energy level, emitting light of 397nm. What is the value of n for the level to which the electron relaxed?
the mineral greenockite is a rare yellow sulfide of cadmium that is 78.0 cadmium and 22.0 sulfur by mass. determine the
The emission spectrum for a one-electron ion in the gas phase. All the lines result from electronic transitions from excited states to the n=3 state. If the wavelength of line B is 142.5 nm, calculate the wavelength of line A.
Concentrated aqueous HClO4 has a concentration of 14.8 M. Calculate the concentrations of all ions present in a solution prepared by pipetting 3.12 mL of concentrated HClO4 into a 1000. mL volumetric flask and filling to the mark.
A certain shade of blue has a frequency of 7.12 × 1014 Hz. What is the energy of exactly one photon of this light
What are the values of [H+], [H2PO3-], and [HPO32-] in a 3.0 M solution of H3PO3? What is the pH of the solution?
A 0.2570g of pure sulfamic acid, HSO3 . NH2, is neutralized by a KOH solution. A 25.70 mL of KOH was added to the solution and 3.40 mL of HCl was used to back titrate the solution.
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