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Solution is prepared by mixing 0.025 l of 3e-3 m BaCl2 and 0.025l of 2e-3 m of na2co3. Ksp= 2.6e-9 for baco3. Write balanced equation with correct state (phase). Will precipitate form?
Determine what mass of sulphuric acid would be needed to mix with 0.75 mol of sodium hydroxide(NaOH)?
Electrochemical cell potentials can be used to determine equilibrium constants that would be otherwise difficult to determine because concetnrations are small
A biochemist is trying to purify the enzyme hexokinase from a bacterium that normally grows in the Arctic Ocean at 5C. In the next lab
A mix contains 0.540 mol He (g) , 0.420 mol Ne (g) , and 0.050 mol Ar (g). Placed in 1 Liter container at 25*C.
The vapor pressure of br2(l) at 25C is 228 mm hg. if 2.00g of br2 is usedm what is the final pressure in the flask? will there be liquid in the flask.
If the exhaust rate is 80 m 3 per minute, what is the CO emission in grams per kilometer?
Calculate molarity of a KCl solution prepared by dissolving 0.525 moles of Kcl in 250. mL of water.
Acetic acid is produced on a large scale by the carbonylation of methanol at about 500 K and 25 bar using a rhodium catalyst
Calculate the molecular weights of the 5 congeners listed above. What do the trends of log KOA, log KOW, and the negative log of water solubility vs. molecular weight indicate about the relationship between molecular weight and
Assume the total heat capacity of the air C air=30 J/K. Describe what's the likely ice will ne after the system reaches equilibrium. b) Estimate theliekly final temperature after reaching equilibrium
When synthesizing benzoic acid, a student used 0.2 mol Bromo Benzene, 0.3 mol Mg and 0.25 mol CO2. Write out the general equations, check limiting reagent and indicate the maximum yield of benzoic acid in moles.
A mixture of O2, CO2, and N2 has a total pressure of 697. torr. In this mixture the partial pressure of O2 is 143. torr and the partial pressure of CO2 is 197. torr. What is the partial pressure of the N2 (in torr)?
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