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Question- Calculate the mass of potassium oxalate monohydrate and calcium chloride necessary to make 0.25 g of calcium oxalate.
Illustrate structures to prove your interpretation.
Kunzite is a mineral containing lithium (Li) and has the empirical formula LiAlSi2O6. Calculate the proportion by mass of lithium in Kunzite.
Explain how do you calculate the photon wavelength (in nm) corresponding to the electron affinity for chlorine
A gas at 30 degrees C and 600 mmHg occupies a volume of 412 cm^3. What is the volume in cm^3 that the gas will occupy if the temperature is lowered to -30 degrees C at the same pressure
A 0.8800 g sample of a carbocyli acid is burned in oxygen, producing 1.569 g of CO2 as well as 0.6459 g of H2O. Find out the empirical formula of arboxylic acid
Calculate the equilibrium concentrations if the initial concentrations are 2.31M N2 and 0.54M O2. (This N2/O2 concentration ratio is the ratio found in air.)
Describe how you expect to convert the intensities recorded by the spectrometer into energies.
one pound of air undergoes a thermodynamic cycle consisting of three processes process 1-2 constant specific volume
Consider the following reaction: NH4HS(s) NH3(g) + H2S(g) An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]=.278M and [H2S]=.355M.
What hybrid orbital would be expected for the central atom in each of the following: Draw the molecular structure of these compounds and label Ï? and Ï?bonds.
a) Draw the product of the reaction of propanal with lithium aluminum hydride, followed by water. b) Draw the product of the reaction of propanal with methylmagnesium iodide, followed by dilute acid
A student determined the freezing point of pure t-butyl alcohol following the procedure given in this experiment . Because of an experimental error, the freezing point temperature that she obtained was higher than the correct value
Given a balanced chemical equation and enthalpy of reaction, relate energy change to amount of reactant or product
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