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If A compound has a molar mass of 72.106 g. A 2.239 g sample of this compound was burned in pure oxygen gas and the measured amount of CO2 produced was 5.466 g and that ofH2O was 2.238 g. No other products were produced in the reaction.
Explain how many grams of carbon were in the original sample that underwent combustion?
r-134a is throttled from 1200kpa and 40oc to 200kpa. it is known that heat of 5kjkg is lost from r-134a to the
1. compare and contrast the nitrogen requirements of microorganisms and higher forms of life describing how their
an aqueous solution containing 21.6 mg of vasopressin in 100.0 ml of solution has an osmotic pressure at 25.0 oc of
A sample of iron was heated to 148.0°C, then placed into 368 g of water at 23.6°C. The temperature of the water rose to 27.2°C. How many grams of iron were in the sample
calculate the mole fraction of kr and its concentration in partsper million by volume. kr composition by volume is
What is the molar solubility of silver Chromate in a solution of 0.20 M silver nitrate? Ksp for silver Chromate is 1.1 x 10^-12.
Determine the molar mass of Freon-11 gas if a sample weighing 0.597 g occupies 100 cm3 at 95°C, and 1000 mmHg.
A solution containing 0.2 mol of KBr and 0.2 mole of MgBr2 in 2.0 liters of water is provided. How many moles of Pb(NO3)2 must be added to precipitate
What volume of 6.0 M sulfuric acid is required for the preparation of 500.0 ml of 0.30 M solution
A plastic cup is heated past its melting point,then remolded and cooled. Based on thisinformation, we can say this polymer
A distance of 200 ft must be taped in a manner to ensure a standard deviation smaller than ± 0.03 ft. What must be the standard deviation per 100 ft tape length to achieve the desired precision?
Calculate the molar solubility of AgCl in a solution made by dissolving 10.0 g of CaCl2 in 1.00 L of solution.
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