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The active ingredient in Pepto-bismol is bismuth subsalicylate, C7H5BiO4. Analysis of a 1.500-g sample of Pepto-Bismol yields 346 mg of bismuth. What percent by mass is bismuth subsalicylate? (Assume that ther is no other bismuth containing compound in Pepto-Bismol.)
Calculate the temperature of the system once equilibrium has been reached. Assume that Cp,m for Au and H2O is constant at its value for 298K throughout the temperature range of interest.
Draw any one of the skeletal structure of a secondary alkyl bromide with a molecular formula C6H13Br and two stereogenic centers. Indicate chirality by using wedge and hash wedged notation.
The disappearance of X is monitored at timed intervals. Assume that temperature and volume are kept constant. The data obtained are shown in the table below.
An 8 g of SO3 was placed in an evacuated container where it decomposed at 600 degrees Celsius. At equilibrium, the total pressure and density were 1.8 ATM and 1.6 g/L. Calculate constant pressure.
The enthalpy of activation of a first order reaction is 123kj/mol. The rate constant at 80 C is 1.73x10^-2 s^-1. What is the rate constant at 35 C. (R=8.31 j/mol K
A buffer, consisting of H2PO4- and HPO42-, helps control the pH of physiological fluids. Many carbonated soft drinks also use this buffer system. What is the pH of a soft drink in which the major buffer ingredients are 8.00 g of NaH2PO4 and 6.70 g..
The pH of a certain solution is 4.5. What is the concentration of H+(aq) ions in the solution. A) 3.16 x 10^-5 M B) 3.16 x 10^4 M
If metallic copper forms on a strip of nickel dipped in 1M CuSO4, what conclusions can be reached about the relative strengths of Ni 2+ (aq) and/vs Cu 2+ (aq) as oxidizers
Calculate the resulting discharge temperature and the required horsepower for one stage compression of the following gas properties. Construct a plot of such discharge temperature and required horsepower versus one stage compression ratios of 2, 3..
How many moles of methane (CH4) are required to react completely with 139 L of carbon tetrachloride according to the following reaction at 0 C and 1 atm
considering an unbalanced equation given as ca3po42 h2so4 --gt caso4 h3po4 for the reaction of calcium phosphate with
In the boron trifluoride etherate-catalyzed reaction of acetic anhydride and salicylic acid to produce acetylsalicylic acid, or aspirin, anhydrous conditions prevail. So, what serves as the base, as water cannot?
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