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Calculate the volume of approximately 37 wt% HCl that should be added to 1 L of distilled water to produce 0.1 M HCl
In an experiment where aniline is reacted with acetic anhydride to form acetanilide, how do you calculate the theoretical yield of acetanilide?
How many moles of CO(NH2)2 are present in 150 g of water, if the freezing point of the solution is -4.02C? kf(water) = 1.86 K · kg/mol.
How many moles of atoms are in each of the following? 4.1*10^24 Pb atoms ,2.15*10^22 He atoms
Calculate the concentration of Hg2+, HgCl+, and HgCl2 that result when 1.00 L of a 0.100M Hg(NO3)2 solution is mixed with an equal volume of 0.100M HgCl2 solution.
Recall "living" carbon samples show 15.3 d/min*g (carbon). note: CaCO3 is 12.00% carbon, and 14C has a half-life of 5730yr.
What volume of oxygen, in ml, would be produced at STP (0 degrees C and 1.00atom) by the decomposition of 3.428g of sodium chlorate, according to 2NaClO3(s) -> 2NaCl(s) + 3O2(g)
essentially converted to Cu(NH3)4 2+ ion, the voltage of the cell (E) goes up to 0.883 V and the Cu electrode is still negative. Find the residual concentration of Cu2+ ion in the cell.
Calculate the [Cr+3] in equilibrium with Cr(OH)4-(aq) when 0.010 mol of Cr(NO3)3 is dissolved in a liter of solution buffered at a pH of 7.3. Kf for Cr(OH)4-(aq) is 8.0 x 1029.
with a density of 3.00 g/mL is mixed with a 50.0 mL sample of a pure liquid, liquid B with a density of 2.00 g/mL. What is the total volume of the mixture
the balanced chemeical equation for the reaction of magnesium metal in oxygen gas and for the rection of magnesium metal in nitrogen gas
What is the pH of a solution that is 6.5×10-2M in potassium propionate and 8.5×10-2M in propionic acid?
The heat capacity of the calorimeter was 24.5J/0C and contained exactly 1250g water which increased from 24.620C to 27.430C. Calculate (Delta)U for the reaction in kJ/mol rxn
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