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Calculate the molality of a solution that contains 51.2 g of naphthalene, C10H8, in 500. mL of carbon tetrachloride. The density of CCl4 is 1.60 g/mL.
0.250 m
0.500 m
0.750 m
0.840 m
1.69 m
If 6.0 moles of ethene and 6.0 moles of hydrogen are introduced into a 2.0 L sealed vessel and allowed to equilibrate at 200ºC, what is the equilibrium concentration of the ethene
Pathological consequences might ensue if various components of the regulation of signal transduction are altered inappropriately.
A 6.52 g sample of hydrocarbon compund containing only C and hydrogen produced 20.5 g of CO2. A 9.29 ml sample weighing 21.6 mg was collected over water at a pressure of 796 torr at 25 C
Which is the excess reactant in the given reaction Na 2 S + CuSO 4 Na 2 SO 4 + CuS it is given that you start this reaction wit 15.5 grams of Sodium sulfide and 12.1 grams of copper sulphate?
In the Olympics and other major athletic competitions, a GC-MS is used to screen athletes for their use of banned substances such as steroids.
What is the percent yield of a reaction in which 260. g phosphorus trichloride reacts with excess water to form aqueous phosphorus acid (H3PO3) and 127 g HCl?
A solution of glycerol in 701 g of water has a boiling point of 103.8 C at a pressure of 760 mm Hg. What is the mass of the glycerol in the solution?
Butyric acid (a monoprotic acid) is responsible for the foul smell of rancid butter. the pKa of butyric acid is 4.84. calculate the pH of a 0.05M sloution of sodium butyrate
What mass of carbon reacts completely with 17.8 grams of SiO2 according to the following equation? SiO2 (s) + 2C (s) → SiC (s) + 2CO (g)
Measurement of the concentration of Fe3+ ions in a saturatedsolution of iron(III) chloride was found to be 0.35M. Calculate the Ksp of iron(III) chloride
Determine what amount of heat is required to increase the temperature of sixty grams of ethylene glycol from 15.1 degree Celsius to 40.3 degree Celsius?
Determine how many moles of carbon dioxide should be added to the system to bring the equilibrium carbon monoxide concentration to 0.743 mol/L
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