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A compound consists of 93.75% carbon and 6.25% hydrogen. The substance dissolves in benzene, and 6.14 g of it lowers the freezing point of 100 g of benzene 2.45 Celsius.
A) What is the empirical formula of the compound?
B) What is its molecular weight?
C) What is its Molecular formula?
A saturated solution was formed when 5.51×10-2 of argon, at a pressure of 1.0 and temperature of 25 , was dissolved in 1.0 of water. Calculate Henerys law constant of Argon
the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 18.4 g of biphenyl in 28.0 g of benzene?
The freezing point change is ?1.9°C. a) Calculate the number of moles of solute in the solution. b) Calculate the molar mass of the solute.
effuse through a membrane. How long would it take the same number of moles of Ar(g) to effuse through the same membrane?
Isobutane is the fuel used in disposable lighters. The lighters' operation is dependent upon the butane's ability to vaporize and be ignited, and this depends somewhat upon the large pressure difference between the inside of the lighter
Antitumor agent, cisplatin, Pt(NH3)2Cl2 is prepared from the following reaction: K2PtCl4 + 2 NH3 ? Pt(NH3)2Cl2 + 2 KCl Assume that 10.0 g of K2PtCl4 reacts with 10.0 g of NH3.
A 3.9336 g mixture sample of BaCl2.2H2O (244.26g/mol) and KCl (74.55g/mol) was dissolved in water and diluted to 500.00 mL. A 25.00 mL of the solution is titrated with 0.1250 M AgNO3 with K2CrO4 as an indicator.
If a non-cyclic alkane shows a molecular ion peak at m/z 2.40 × 102, what is the chemical formula
A saturated solution of this substance was made in 0.01 M KlO3. The copper concentration was found to be 0.0012M. Determine the [IO3^-] and the Ksp of the substance.
A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2 HgO(s)-----> 2 Hg(l) + O2(g) delta H rxn = 181.6 kJ (a) How much heat is needed to decompose 505 g of the oxide
Draw the organic product of the following reaction. Butyric acid with SO2Cl and heat as catalysts
What is the mass of aluminum metal that reacts to give 1 g of hydrogen gas?
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