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A rolaid tablet contains calcium carbonate, which neutralizes stomach acid. if 44.55 mL of 0.448 M hydrochloric acid is required to neutralize one tablet, how many milligrams of calcium carbonate are in a rolaids tablet
Compound A was treated first with ozone then with zinc dust, yeilding compounds, B and C. Compound B gave rise to a molecular ion at m/z=72
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
Predict if the following conditions would result in the formation of a preecipitate: a. 0.0025 M Fe3+ at pH 6.00 b. 0.0025 M Ba2+ and a 1.25x10-4 M solution of sodium sulfate c
Calculate the amount of heat transferred when 23.0 of CH_2OH(g) is decomposed by this reaction at constant pressure.
Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25. Suppose that 1.15 of rubbing alcohol evaporates from a 65.0 aluminum block.
A sample of hydrogen gas is mixed with oxygen gas. The mixture has a total pressure of 820 torr and the oxygen gas has a partial pressure of 32 torr. What is the partial pressure of the hydrogen gas
Which combination of atoms is most likely to produce a compond with covalent bonds?a) K and Brb) Al and Sc) S
What effect on the value of Ca(OH)2's Ksp (6.5x10^-6 ) would sucking up some suspended calcium hydroxide solid have. Would the Ksp value be higher or lower than the normal value. Why
assuming no heat loss to the surrounding environment determine the minimum duration of time necessary for a 100 w
Write the balance equation and predict the moles of ammonia that can be made using usng 22.4g of nitrogen and an unlimited amount of hydrogen
Determine how much silver ion(Ag+) is left in solution if you mix 0.10 mole of silver nitrate AgNO3 with 0.20 mole of sodium hydroxide NaOH to make a one litre solution.
What is the difference in volume (in mL) between the water vapor and liquid water? (Assume the density of liquid water is 1.0 g/mL.) C. Why is it dangerous to heat a closed container of liquid to its boiling point?
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