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Hydroxylapatite, Ca10(PO4)6(OH)2, has a solubility constant of Ksp = 2.34 × 10-59. Solid hydroxylapatite is dissolved in water to form a saturated solution. What is the concentration of Ca2 in this solution if [OH-] is somehow fixed at 5.30 × 10-6 M
A solution has a volume of 2.0 L and contains 36.0 g of glucose. If the molar mass of glucose is 180 g/mol, what is the molarity of the solution
Determine the mL KOH needed at the equivalence point and the ph upon the addition of this volume of KOH.
What is the formula of the manganese chloride compound produced in the reaction? (Type your answer using the format CO2 for CO2.)
A NaOH solution that is 18.1M, has a density of 1.250 g/ml. What is the molality? Mass Percent? and Mole Fraction?
Draw isotherms generated by this equation which are at the critical temperature, above the critical temperature, and below the critical temperature. Also, mark on the sketch the critical volume and the critical pressure for the gas.
Protein Quantification why should a new standard curve be prepared each time a protein sample must be analyzed for its concentration?
A gaseous organofluorine compound has a density of 0.496 g/L at 17 deg. C and 189 mm Hg. What is the molar mass of the compound
A buffer is to be prepared with a pH of 4.5 from 0.1M solutions of sodium acetate and acetic acid. How many mL of 0.1M NaAc would have to be added to 100mL of 0.1M HAc to make the proper buffer solution?
The heat of vaporization of water is 40.66 kJ/mol. Assuming sweat is 100% water, how much heat is removed from your body through the evaporation of 3.13 g of sweat?
phenol (respectively pKa 4.75 and 9.95), What is the principle species present at pH values 3, 5, 7, and 11?
The amount of nitrogen in an organic substance can be determined by an analytical method, called the Kjeldahl method, in which all the nitrogen in the organic substance is converted to ammoinia.
how many moles of Cu2O can be produced from the reaction of 0.66 mol Cu with 0.40 mol O2?
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