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What is the purpose of the buffer solution in the kinetic analysis of the experiment for the reaction of iodide ion with hydrogen peroxide
How much of the drug substance has to be used (calculate)? B) How much NaCl do you need to add to hace an isotonic preparation?
a sample of nitrogen gas occupies 1.55 l at 27.0c and 1.00atm. what will be the volume be at -100.0 C and the same pressure
Some water was added to the initial reaction mixture of 5mL water, 5.55g sodium bromide and 5 mL butanol in the procedure that was perfromed to obtain 1-bromobutane from 1-butanol.
The water solubilities of oxalic acid and sodium oxalate at room temp are 10g/100ml and 3.7g/100ml respectively. Could you prepare oxalic acid by adding HCl to a solution of sodium oxalate, cooling it to room temp, and filtering the resulting mixt..
A compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen (by mass). calculate empirical formula.
The Ksp of Ba3(Po4)2 is 6.0 x 10^-39. How many grams of Ba3(PO4)2 can be dissolved in 250mL of solution before the solution become saturated. Molar Mass of Ba3(PO4)2 = 601.9 g/mole
the following findings, express to the nearest atomic mass unit, in agreement with Dalton's atomic theory? expalin your answer.
During a period of discharge of a lead-acid battery, 405 g of Pb from the anode is converted into PbSO4 (s).
Consider the reaction below. What volume of CO2 gas will be produced by the reaction of 100 gram of CaCO3 at 25degC and P=10atm? CaCO3(s) + 2 HCl(l) > CaCl2(aq) + CO2(g) + H2O(l)
Consider a separation train consisting of two distillation columns which are designed to separate a three componentmixture of benzene, toluene, and xylene into three streams, each rich in one of the species asshown below.
Use the dipole moments of HF and HCL (following) together with the percent ionic character of each bond to estimate Lewis structure of each reactant and product. Identify the free radicals
Suppose 50 mL of 0.250 M CoCl2 solution is added to 25.0 mL of 0.350 M NiCl2 solution. Calculate the concentration, in moles per liter, of each of the ions present after mixing.
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