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Calculate the molar solubility of calcium hydroxide in a solution buffered at pH = 3, pH =7, pH = 9. Ksp value for Ca(OH)2 from the textbook: 4.68*10^-6
Given that the bond length of HBr is 1.41 A, estimate the dipole moment of this molecule by assuming a charge of 1+ on H and 1- on Br.
a 93.7 g 5.20 mole sample of water is heated to exactly 94.4 celsius. it is then added to 90.1 g 5.00 mole of water at
solution is titrated with a solution of NaOH. 23.10mL of the NaOH solution is required to titrate the HCl. Calculate the molarity of the NaOH solution.
What is the rate of the reaction if the concentration of CH3Br is doubled. B. What is the rate of the reaction if the concentration of NaOH is halved
The viscosity of the broth is 1.5 cp, the particle density is 15 g/liter and the specific cake resistance (a) is 8.5x1010 cm/g. The diameter of the filter drum is 1.25 m and it length is 1.5 m. Calculate the required pressure drop across the filte..
Calculate w (in kJ) when 415 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 464 K:
Acidic and basic solutions have distinct physical and chemical properties. For chemistry courses, especially those with a laboratory component, it is important that you be able to distinguish these properties
Salicylic Acid and Acetic Anhydride --> Acetylsalicylic Acid and Acetic Acid C7H6O3 + C4H6O3 --> C9H8O4 + C2H4O2 Salicylic Acid - 1.75g 1.6 equivalents of acetic anhydride for every equivalent of salicylic acid.
The initial mass of the crude ether was 141mg. The mass after recrystallization was 121mg. Calculate the percent recovery from recrystallization.
The volume of HI(aq) required to reach the equivalence point : (c) The pH at the half-neutralization point. (d)The pH at the equivalence point.
the utilization of one glucose molecule is involved d. oxygen is produced e. none of the above. Which answer is correct and WHY?
Explain how you known. Use Lewis dot drawings as part of your explanation. Ag+ + 2NH3 --> [Ag(NH3)2]+
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