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What is the minimum pH required to prevent the precipitation of SnS in a solution that is 0.0010 M Sn(NO3)2 and saturated with H2S (0.10 M)? (ksp = 1.0 x 10 ^-25 K1K2 = 1.3 x 10 ^-20)
What is the resultant pressure if 3.7 mol of ideal gas at 273 K and 1.97atm in a closed container of constant volume is heated to 446 K.
When 50.0mL of a 1.00M solution of Fe(NO3)3 is mixed with 50.0mL of a 1.00M solution of NaOH a precipitate forms. Determine the mass of the solid produced in this reaction
the density of an unknown compound made from sulfur and oxygen is 2.47 x 10^-3 g/mL at 23 C and 76 kPa. what are the possible molecular formulas for the compound?
Write a balanced chemical equation for the neutralization reaction upon which this titration is based, and indicate clearly which atom is being protonated. Then, calculate the equilibrium constant for the neutralization reaction.
A tunable dye laser emits pulses of light at 609.0 nm, each having a total energy of 9.8E-6 J. Calculate the number of photons in each pulse.
Aldrin (an insecticide) has a logKow of 5.8, while atrazine (an herbicide) has a logKow of 2.6. Kow is the octanol-water partition coefficient (Spiro pp. 498). Which pesticide will bioconcentrate to a greater extent
For the titration of 25.0 mL of 0.050 M Sn+2 with 0.100 M Fe+3 (using Pt and SCE electrodes), what is the cell potential after the addition of 26.0 mLs of titrant. Eo for Fe+3 /Fe+2 = 0.732V ; Sn+4 /Sn+2 = 0.139V.
How many moles of NaOH will need to be added to 100.0 mL of 0.100 M acetic acid to make a buffer with a pH of 5.00?
Compute the quantity of work(W) that is associated with a 9.5 Litre expansion of a gas against the given pressure of 755mm Hg
Calculate the energy of an electron in the hydrogen atom when n = 2 and calculate the energy of an electron in the hydrogen atom when n = 6.
Volume of NaOH dispensed (mL) A) 2 ml B) 2.25 ml C)2.25 ml. Moles of NaOH dispensed. Molar concentration of the acid (moles/L)
what mass of hydrogen peroxide should result when 1.29 g of barium peroxide is treated with 25.0 ml of hydrochloric
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