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(a)Write the half-reaction that occurs at a hydrogen electrode in acidic aqueous solution when it serves as the cathode of a voltaic cell.
(b)What is standard about the standard hydrogen electrode?
(c) What is the role of the platinum foil in a standard hydrogen electrode?
What is the pressure (in millimeters of mercury) inside a container of a gas connected to an open-end manometer when the level in the arm connected to the container is 223.4 mm in height
Question- A beaker with 195mL of an acetic acid buffer with a pH of 5.000 is sitting on a bench top. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.60mL of a 0.320M HCl solution to the beaker. How much wi..
Calculate the pH resulting from mixing 15.00 mL of 0.800 M HIO3 (pKa=0.77) with 45.00 mL of 0.0200 M NaOH.
what mass of this substance must evaporate in order to freeze 190 of water initially at 24? the heat of fusion of water
Identify the bonding pairs and lone pairs in the Lewis electron-dot formula of I3- ion - Predict the electron arrangement and the shape or geometry of the I3- ion using the VSEPR model. Draw the VSEPR sketch
antacids which contain CaCO3 react with stomach acid to the equation . it gives the eq but I cant type it. what is the mass of stomach acid that reacts with 1.00 grams CaCO3 ?
based on the average number of moles of io3- in your samples and the initial volume of those samples what is the
The C-H bond and the C-halogen bond are broken in the same step. Alkyl bromides generally react faster than alkyl iodides.
Draw the product of these reactions A) para-cresol + excess Cl2 B) 1-chloro-2,4dinitrobenzne + CH3CH2ONa
the normal respiratory rate for a human being is 15.0 breaths per minute. the average volume of air for each breath is
Explain how a change in the amount of a product causes a shift in equilibrium?
Why is the same volume of thiosulfate used in each reaction? What is the purpose of the thiosulfate? [You must explain the technical reasons for including the thiosulfate
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