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1. What is an aliquot of a sample?
2. What is the filtrate in a gravity procedure?
3. How full (the max level) should a funnel be filled with solution in a filtration procedure?
Problem- The base dissociation constant for (CH3)3N is 6.31X10-5. What is the ph of a solution initially containing 5.250g (CH3)3N dissolved in 250.0 ml of solution when it reaches equilibrium
The heat exchange for ammonium nitrate NH4NO3 when 4.98 g are dissolved in 50.0 mL water is 1325 J. What is deltaH(sol) in kJ/mol for ammonium nitrate.
If 10 ml of 10mM of an acid is mixed with 30 ml of 10mM NaOH. Explain what will be the pH of the final solution
when we heat saturated calcium hydroxide why must c are be taken so that the saturated calcium hydroxide solution does
Carbon monoxide and water vapor, each at 190 Torr, were introduced into a 250 mL container. When the mixture reached equilibrium at 690 ?C, the partial pressure of CO2(g) was 108 Torr.
A 14.0 g sample of X combines with a 26.2 g sample of Y to form the compound XY2. What is the mass of the reactants.
How many grams of cobalt metal will be deposited when a solution of cobalt(II) chloride is electrolyzed with a current of 10. amperes for 109 mintues?
If you start with 0.048 M I2 at this temperature, how much will remain after 5.29 s assuming that the iodine atoms do not recombine to form I2 _ M
The density of an unknown metal is 8.94 g/cm3 and its atomic radius is 0.126 nm. It has a face-centered cubic lattice. Find the atomic weight of this metal
2.00 L of 0.100M pH 9.00 glycine buffer starting with the sodium chloride salt of zwitterionic glycine and 1.00M NaOH is prepared. If a reaction that generated 2.00 mmoles of base were carried out in 100 mL of the above buffer, what would be the f..
How many moles of each of the following were in the original sample? What is the molecular formula?
Calculate the work (in kJ) when 3.00 moles of methane react with excess oxygen at 332 K: CH4(g) + 2O2(g) ? CO2(g) + 2H2O(l)
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