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What would be the proper way to write the formula for a compound containing aluminum and oxygen?
Briefly explain which indicator, bromocresol purple (pKa = 6.3; from yellow to purple) or thymolphthalein (pKa= 10.0; from colourless to blue), would be better for use in this titration
What is the pH if 2.0 g of Ca(OH) 2 are added to 1.0 liter of stomach solution with a pH=1.0 ?
A particular first-order reaction has a rate constant of 1.35 × 10^2 s-1 at 25°C. What is the magnitude of k at 75°C if Ea = 85.6 kJ/mol?
You are titrating 130.0 mL of 0.070 M Ca2 with 0.070 M EDTA at pH 9.00. Log Kf for the Ca2 -EDTA complex is 10.65, and the fraction of free EDTA in the Y4- form ?Y4-, is 0.041 at pH 9.00.1) What is K'f, the conditional formation constant, for Ca2 a..
An industrial flavor-enhancing process requires that a butter-flavored food be heated briefly at 200 degrees Celsius. Explain how long can the food be heated at this temperature and retain 68% of its butter flavor?
Explain if 12.5 grams of a certain fertilizer is found to contain 3.35 grams of phosphorous as P2O5, explain what is the value of P in the N-P-K designation
Enzyme X is a highly pigmented protein that imparts the characteristic color to certain blue-green algae. It also facilitates a reaction necessary to the survival of this species
if the empty cylinder has the mass of 94.2g and the cylinder with water has the mass of 138.7 what is the mass of water
question a 2.91 liter flask at 17 degrees celsius contains a mixture of n2 he and ne at partial pressures of 0.253 atm
How much water must be added to 562 mL of 0.200 M HCl to produce a 0.148 M solution? (Assume that the volumes are additive.)
At its boiling point, the vaporization of 0.579 mol CH4 requires 4.76 kJ of heat. What is the enthalpy of vaporizating of methane?
What mass of water (in grams) forms from the reaction of 2.66 L of hydrogen gas and 2.06 L of oxygen gas. Both gases are at 759 torr and 7.9 oC.
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