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What is the pH of 5.0756mg barium hydroxide octahydrate in4.6 liters of water, and the pH of 0.19789g dihydrogen sulfate in 374mL of water both are separate and at 25 degrees C with nothing else present, assume no change of volume and or temp.
Problem- Explain any differences in regio- and/or stereochemistry of the proposed products. Including a mechanism as part of your answer, with notes clearly indicating any intermediates you believe to be present during these conversions may be hel..
a buffer is prepared by combining 10.0 g of NaH2PO4 with 150 mL of 0.20 M NaOH and diluting to 2.0 L. what is the pH of the buffer? (Ka (H2PO4-)= 6.2 x 10^-8)
Determine the fraction of the energy radiated by the sun in the visible region of the spectrum (350 nm to 700 nm). (Assume the sun's surface temperature is 5800 K.)
What geometric figure is represented by these imaginary lines and what is the approximate angle between all possible pairs of covalent bonds in the model
SLIGHTLY LESS than 100 degrees Celsius, but the final boiling point was AT 100 degrees Celsius. Why should the boiling point rise as the distillation progresses?
A 1.00-g solid sample containing a mixture of NaCl and H3C6H5O7, a triprotic acid, is dissolved in 15 ml of water. Titration of the acid solution requires 25.40 mL of 0.1598 M NaOH solution to reach the endpoint.
An equilibrium mixture contains N2O4 , (P= 0.27 ) and NO2 (P= 1.0 ) at 350 K . The volume of the container is doubled at constant temperature.
A radioactive element has a half-life of 2.2 hours. How many hours will it take for the number of atoms present to decay to one-sixteenth of the initial value? Show your calculations
2C4H10(g) + 13O2(g) 8CO2(g) + 10H2O(g) Explain how many moles of oxygen are needed to react completely with 14.73 moles of butane
A. Use the dipole moments of HF and HCl ( HF= 1.08 D, HCl = 1.82) together with the percent ionic character of each bond ( HF= 20% ionic, HCl= 45% ionic) to estimate the bond length in each molecule.
Image text transcribed for accessibility: A buffer was prepared by dissolving 0.370 mol of the weak acid HA (Ka = 1.00 times 10-5) plus 0.036 mol of its conjugate base Na+A- in 1.00 L. Find the pH.
a s2- ion-selective electrode gave an electrodepotential of e -0.254 v when immersed in a 7.76 10-2 m standard k2s
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