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The acid dissociation constant for HClO is 3.0 x 10-8. What is the hydrogen ion concentration in a 0.12 M solution of HClO?
A) 3.6 x 10-9 M
B) 3.6 x 10-5 M
C) 6.0 X 10-8 M
D) 2.0 x 10-5 M
E) 6.0 x 10-5 M
From your calculation of the specific rotation for L-erythrose 4-phosphate in Q4. above determine the specific optical rotation, [?]D for D-erythrose 4-phosphate? A) -100 B) -10 C) 100 D) 10 E) -1
Make a new solution with a total volume of 10.0 mL and How many moles are contained in 500.0 mL of solution
A sample of copper was pretreated and diluted to 500mL and portions of this solution were analyzed by measuring the absorbance of a copper (I) complex of 1, 20 phenanthroline using a standard addition technique.
calculate the absorbance of a solution containing 3.70×10-5 M R and 5.64×10-4 M Q at 560 nm. Assume 1.00 cm cells for all data given.
The equilibrium system H2 + I2 ? 2HI has equilibrium constant K = 6.2. Starting from the nonequilibrium state [H2] = 0.3 M, [I2] = 0.5 M, and [HI] = 0.7 M, what are the concentrations of the three molecules when equilibrium is established
Calculate the molar solubility of AgBr in 4.0 M NH3. Kf for Ag(NH3)2 is 1.7 x 10^7 and Ksp for AgBr is 5.0x10^-13 5. What is the pH at the equivilaence point when 45 mL of 0.125 M acetic aced is titrated with 0.225 M NaOH? Ka for acetic acid is 1.7..
Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. Write a net ionic equation for the reaction of CaCO3(s) With a strong acid.
A compound contains 40.00% carbon, 6.67% hydrogen, and 53.33% oxygen. Determine the empirical formula of the compound. Give the chemical formula for calcium phosphate.
A 0.0560 g quantity of acetic acid is dissolved in enough water to make 50.0 mL of solution. Calculate the concentration of H+, CH3COO-, and CH3COOH at equilibrium. Ka for acetic acid= 1.8x10^-5.
An oxygen tank kept at 20 degree C contains 28.0 moles of oxygen and the duage reads 31.0 atm. after two weeks, the guage reads 10.5 atm how many moles of oxygen
The air pressure in the tires of an automobile is adjusted to 37 psi in SanDiego, where the air temp is 68F. The air in the tires is at the same temp as the atmosphere
At 900 titanium tetrachloride vapor reacts with molten magnesium metal to form solid titanium metal and molten magnesium chloride. Write a balanced equation.
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