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Explain with 2.01 x 10-2 mol of HCO3- in a 3.0 g tablet of alka seltzer. Compute the total volume of stomach acid (pH=2) that this could neutralize. Chemical eqn: HCO3- + HCl (aq) > H20 (l) + CO2 (g) + CL- (aq) Percent composition = 56.2 % (NaHCO3 in alka seltzer) 0.883 g CO2 lost
if 114 kilo joule is given off per mole of ethylene reacting determine how much heat is released when 14.8 kilo grams
At 699 K, deltaG = -23.25 kJ for the reaction H2(g) + I2(g) --> 2HI(g). Calculate deltaG for this reaction if the reagents are both supplied at 5.0 atm pressure and the product is at 1.00 atm pressure.
Offer a brief explanation of why bandgaps for octet p-block semiconductors (1) decrease with increasing average principal quantum number
Consider the ring structure of beta-D-glucose. It will give a positive test as a reducing sugar. How can that happen?
Carbon tetrachloride (CCL4) is a useful solvent for both IR absorption and Raman Spectroscopy because it has few vibrational modes. The mostr intense Raman band occurs at 459.0 cm^-1.
A reaction mixture initially contains 2.8 M H2O and 2.6 M SO2. Determine the equilibrium concentration of H2S if Kc for the reaction at this temperature is 1.3 × 10-6.
2HI(g) ? H2(g) + I2(g) Keq = 0.016. Initially a container contains 0.46 M HI and no product. What is the equilibrium concentration of H2
The carbohydrate glyceraldehyde is shown below in several different Fischer projections. Sort the structures according to whether the Fischer projection represents glyceraldehyde
a mixture of hear xe and has a total pressure of 2.60 atm. the partial pressure of he is 0.350 atm and the partial
The initial concentrations of the three gases are 0.550 M H2S, .550 M H2, and .275 M S2. Determine the equilibrium concentrations of the gases.
If a solution contains 0.01 M Ca^2+, 0.01 M Zn^2+, and 0.01M Ni^2+ ions and you want to separate them using aqueous (NH4)2C2O2, which ion will precipitate first as an oxalate, CaC2O4, ZnC2O4, or NiC2O4
using henrys law calculate the molar concentration of rm o2 in the surface water of a mountain lake saturated with air
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