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What volume of a 0.113 M perchloric acid solution is required to neutralize 36.9 mL of a 2.94E-2 M calcium hydroxide solution?
If a cell is in a resting state, which of the following is NOT true: a. cell needs little energy b. high ATP, low ADP levels
For AuCl, Ksp = 2.0 x 10-13 at 25°C. What is the solubility of AuCl at this temperature?
An aqueous solution is 48.3% by mass hydroiodic acid, HI. The density of this solution is 1.6 g/ml at 20 C. How many grams of pure HI are there in 190.0 ml of this solution at 20.0 C?
a 0.331-g sample of aspirin prepared in the lab was dissolved in 95% ethanol and titrated to a phenophthalein endpoint with 16.7 ml of 0.107M NaOH Calculate moles of scetylsalicylic acid present in the aspirin sample ;What mass (g) of scetylsalicy..
The chemist discovers a more efficient catalysts that can produce ethyl butyrate with a 78 % yield. How many grams would be produced from 8.45 g of butanoic acid and excess ethanol
A buffer is prepared by dissolving 52.203g of HNO2 and 65.552g Mg(NO2)2 into water forming 2.5 L of solution. What is the pH of the buffer. keep in mind: Mg(NO2)2 (s)--------->H30+ (aq) +NO2- (aq)
For the following changes, determine if the equilibrium would (L) shift left, (R) shift right, (N) have no effect. H20(g)+C(s) CO(g)+H2(g)
On a long standing, an open bottle of aspirin will develop an odor of vinegar. What causes this to happen?
Rank the following in order of decreasing number of atoms
Calculate the E0 for the following reaction by using the standard reduction potentials data in your lab manual.
A 15 mL sample of 0.100 M Ba(OH)2 is titrated with 0.12M HCl. Calculated the equivalency point, and the pH after 5mL, 10 mL, 15 mL, and 20 mL of HCl are added.
What is the wavelength of light having a frequency of 5.4 x 10^13 Hz? What is the frequency (in Hz) oflight having a wavelength of 8.26 x10^2 nm?
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