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you need to make 1 mL of a 10 um PNP standard form a 0.2mM stock solution in pH 10 buffer.How much of the stock PNP would need to be diluted in how much of the pH 10 buffer? You have a choice of a p-20 ,p-100,p-200,p-1000,a 1mL serological pipette , and a 5mL serological pipette. Which one(s) would you choose to make this standard and why? Explain how you would calibrate the pipette(s) you choose.
write a electrn configuration for an octahedral complex, write the electron configuration for [RhCl6]^-3 in terms of MO labels for ground electronic state.
A laser pulse with wavelength 555nm contains 4.40mJ of energy. How many photons are in the laser pulse.
Determine the empirical formula for each substance.
What is the molar weight of the compound. Note: the freezing point depression constant of water is 1.86 oC/m
determine the initial concentration - Constant rate is 3.20×10-4 M/s for a zero-order reaction. concentration has dropped to 9.00×10-2 M after 60.0 seconds
A mixture of 0.152 moles of C is reacted with 0.117 moles of O2 in a sealed, 10.0L vessal at 500K, producing a mixture of Co and CO2. The total pressure is 0.6879 atm. What is the partial pressure of CO?
How many grams of lanthanum chloride LaCl3 must be added to 1 kg of water to lower the freezing point of water by 1.1 degrees C?
A 325 mL sample of solution contains 25.3 grams of CaCl2. Calculate the molar concentration of Cl- in this solution.
What is the organic product in each step when phenylmagnesiumbromide (grinard reagent) is reacted with Ch3Ch2CN in ether and H3o+? What is the imine that is formed?
Consider the combustion reaction between 26.0 mL of liquid methanol (density=0.850g/mL) and 13.0 L of oxygen gas measured at STP. The products of the reaction are CO2(g) and H2O(g),
Ammonia gas is condensed at its boiling point at 1.01325 bar at -33.4c by the application of a pressure infinitesimally greater than 1 bar. To evaporate ammonia at its boiling point requires the absorption of 23.30 kl/mol. Calculate
If 45.4g of H2O are produced in the reaction given below, the number of grams of magnesium carbonate used is.?
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