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Problem: According to its label, each tablet of Alka-Seltzer contains 1.916 g (0.0228 mol) of sodium hydrogen carbonate. Consider and Alka-Seltzer tablet dissovled in 150 mL of water:
(1) What equilibrium determines the pH?
(2) What is the pH of the solution?
calculate the percent composition of sodium in sodium chloride. tom yum soup contains 420 mg sodium and 30 mg potassium
Explain to what temperature would you have to heat Au(l) to cause its vapor pressure to become 314.3 mm Hg if its heat of vaporization as well as boiling point are 365.00 kJ/mol and 3080.2 K, respectively
The test tube contained some water (besides the metal) that was subsequently added to the calorimeter. Considering a higher specific heat for water, will the temperature change in the calorimeter be higher, lower, or unaffected by this technique e..
Note that in some cases, the "product" may be the result of a proton transfer reaction. Do not assume that an aqueous workup (H3O+) is performed unless it is specified
Find the area bounded by the curve y=5x^2-4x+3 from the limit x=0 to x=
With respect to VSEPR theory, how does the number of electrons groups on the central atom determine the molecule's shape. How are the bond angles affected by the presence of non-bonding electrons and -bonds
How is succinate dehydrogenase unique when compared to the other enzymes in the citric acid cycle
The rate constant for a certain reaction is k = 5.80×10?3s^-1 . If the initial reactant concentration was 0.950 M , what will the concentration be after 3.00 minutes
2C_4H_{10}{(g)}+13O_2 {(g)}\rightarrow 10H_2O{(g)}+8CO_2{(g)} USE the balanced equation to answer both! Calculate the mass of water produced when 2.99 of butane reacts with excess oxygen. Calculate the mass of butane needed to produce 98.2g of car..
Calculate the wavelength of a neutron that has a velocity of 250 cm/s.
The enthalpy change for the reaction between W(s) and C(graphite) is difficult to measure directly because the reaction occurs at 1400degree C, W(s) + C(graphite) -- WC(s). However the heats of combustion of the elements and of tungsten carbide can ..
The student then adds more water until the solution volume becomes 1.0 L Write the eqn for each large-extent B/L A/B rxn which occurred on making this mixture. Do this by starting with the rxn that involves the strongest B/L A with the strongest B..
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