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Calculate the % of calcium carbonate in a mixture of calcium carbonate, sodium carbonate and magnesium sulfate if we obtained 1.73g of calcium carbonate and 2.34g of sodium carbonate and 1.93g of magnesium sulfate.
The rate constant for the equation 2C2F4 --> C4F8 is 0.0438 M?1· s?1. We start with 0.142 mol C2F4 in a 5.00-liter container, with no C4F8 initially present. What will be the concentration of C2F4 after 1.00 hour
In nitration of bromobenzene to form bromonitrobenzene, why is para substitution favored over ortho and meta substitution
The cranberry juice control is 27% juice when purchased from a local grocery store. Provide the calculations required to prepare the series of standard solutions of cranberry juice
if you were to use IR spectroscopy how would you differentiate between acetone, water, and diethyl ether? (include values and relate them to functional groups)
a certain compound has a half-life of 14 minutes at 25c. its decomposition is a first order process. how much time does
a solution is prepared by dissolving 285 g of sucrose c12h22o11 in 624 g of water. what is the vapor pressure of this
When a space shuttle re-enters the atmosphere, its temperature rises and it can heat the surrounding air to 1260 degrees celcius. At that temerature some endothermic reactions take place that atlower temperatures are not spontaneous under standard..
The empirical formula of a solid is AB2 and it dissolves to form the cation A2+ and the monoanion B-.
The height of the mercury in the right arm open to atmospheric pressure (760 mmHg) is 100 mm and the height in the left arm is 120 mm. What is the pressure in the bulb
Titration of a 308.5 mg sample of synthesized aspirin with 0.100 M NaOH solution required 20.30 mL. What is the EMM(effective molar mass) of the sample, and what is the % ASA(acetylsalicylic acid)
A solution is known to be 23 percent by volume rubbing alcohol (isopropanol) how many milliliters of isopropanol would be in 250 ml of solution
What is the percent by mass of oxygen in a gaseous mixture whose molar composition is 0.500% CO2 and 99.500% air? The composition of air is 21% mole O2
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