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When an interfering substance M is present, a fluoride ion selective electrode obeys the following modified response equation:
E(V) = K - ß(0.0592)log{[F-]+Ks[M-]}
A potential of -235.6 mV is measured for a fluoride ion selective electrode in a solution of 3.16×10-5 M fluoride at pH 5.00. Calculate the potential that would be measured if the solution pH were 9.70, assuming the selectivity coefficient (Ks) for OH- is 0.1 and that ß is 1.00. Please show your work.
How many moles of Na2SO3 were added to the calorimeter cup if 30.0mL 0.50 M NaOCl and 70.0mL 0.50 M Na2SO3 were combined?
A 10.0L container of helium gas with a presure of 250mmHg at 0 degrees Celsius is heated to give a pressure of 1500mmHg. What is the temperature in degrees Celsius?
Gaseous butane (C4H10) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O) . If of water is produced from the reaction of 3.49 g of butane
Radiation with a 58.4 nm of wavelength interacts with a H 2 (hydrogen atom)and induces the ejection of an electron then determine the kinetic energy of the departing electron express your answer in eV?
CaC2(s) + 2H2O(l) = C2H2(g) + Ca(OH)2(aq) . If 34 g of CaC2 are consumed in this reaction, how much H2O is needed?
An automobile has a wavelength that is not measurable by human standards. If the car has a mass of 4000 lbs (1.81 x 103 kg) and travels at 60 miles/hr (26.8 m/s), calculate the wavelength of the car.
The product of this reaction contains two stereocenters. Due to the stereospecificity of the bromination and the symmetry of the product, however, only the meso-diastereomer of stilbene dibromide is produced.
honda developed a car that utilize a hydrogen fuel cell to power the car instead of gasoline. the estimated mileage for
Three gases, hydrogen, argon, and methane are confined in a 8.00 L vessel at a pressure of 6.00 atm. The vessel contains 4.00 moles of hydrogen, 5.00 moles of argon, and 2.00 moles of methane. What is the partial pressure of methane?
what is the molecular formula and empirical formula of NH2Cl, molar mass = 51.5 g/mol
the following cations were extracted from 100 g soil with at cec of 20 meq100g.nbsp the soil contained180 mg
Why do aldehydes undergo nucleophilic addition faster than ketones? Explain based upon the transition state (applying Hammond's principle) and electronic and steric actors.
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