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A buffer solution of a weak base and its salt had a pH of 5.23 when the base was 0.292 M and the cation was 1.89 M. Calculate the equilibrium dissociation constant (Kb).
How many moles of O2 will be produced if 4.83 moles of CO2 react completely?
Which of the following alkenes can exhibit cis-trans isomerism?
What would you expect to observe when adding one drop of iodine-potassium iodine reagent to each of the four carbohydrates?
2NO(g) + O2(g) 2NO2(g) Given that we start with 0.035M NO(g) and 0.035M O2(g) AND end with 0.012M NO2.
What is the stoichiometric relationship between IO3- and I2? b. What is the stoichiometric relationship between I2 and S2O3 2-? c.
a 7.95 L Container holds a mixture of two gases at 37 degrees celcius. the partial pressure of gas A and gas B, respectively, are .287 atm and .698 atm. if .210 mol a third gas is added with no change in volume or temperature.
After growing up your protein in E. coli and centrifuging the cells to collect the cell pellet, at what temperature should you store the cells?
Why is water a reactant in the fermentationof sucrose? Enter the solubility-product expression
What is the density of a block of marble that occupies 253 cm3 and has a mass of 752 g?
Write down the second period elements (ie. lithium through neon), on order of increasing first ionization energy and Write the electron configuration for a gallium atom.
The volume of 350. mL of gas at 25°C is decreased to 135 mL at constant pressure. What is the final temperature of the gas?
Calcium phosphate, silicon dioxide, and coke may be heated together in an electric furnace to produce phosphorus, as shown in the following equation: 2Ca3(Po4)2+6SiO2+10C=6CaSiO3+10CO +P4
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