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Problem- Calculate the osmotic pressure of a solution containing 24.9g of glycerin (C3H8O3) in 247.0mL of solution at 285K.
Any expert will able to provide correct answer for the above question.
In Organic lab we are enabling trans to cis isomerizaton of E-1,2-dibenzoylethylene by irradiating the alkene with UV light. What is the overall equation for this reaction
State the mass balance and charge balance equations for a solution containing .200F La2 (SO3)3 and .100 F Na2S (pka 1 and pk2 for H2SO3 are 1.852 as well as 7.157 respectively and 7.02 and 13.50 for H2S respectively)
The rate constant for the reaction 2N2O5(g) → 4NO2(g) + O2(g) is k = 3.38x10-5/s at 25oC. a) Enter the half-life of N2O5 in seconds. Use two significant figures and do not enter units.
A 2.60-L vessel contained 0.0160 mol of phosphorus trichloride, 0.0115 mol of phosphorus pentachloride, and 0.0903 mol of chlorine at 180°C in an equilibrium mixture. Calculate the value of Kc for the following reaction. PCl3(g) + Cl2(g) PCl5(g)
Calculate the heats of dissolution for lithium chloride and ammonium chloride from Tabulated ?Hf values, these can be found in Appendix B of your textbook or on-line.
A reaction has activation energy of 125 kJ/mol. At 25 degrees Celsius the rate is 5.0E5 M/s. If the temperature is decreased to 0 degrees with all other things being the same then what is the rate of reaction
The density of an unknown substance was determined by adding a weighed piece to a graduated cylinder containing 37.3 mL of water. After the substance was submerged the water level was measured at 46.2 mL. The substance weighed 100.0 g. What was it..
Use the appropriate standard reduction potentials to calculate the value of k at 25 degrees celcius for this reaction NiO(s)+2Cl-(aq)+4H+(aq)->Cl2(g)+Ni^+2(aq)+2H2O(l)
Question- Write balanced equations for the reactions undergone by each halide and write mechanisms for both reactions undergone by 2-bromobutane. Arrange the alkyl bromides in order of reactivity in each reaction, tell whether each reaction is Sn1..
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken
What weight of A would be removed by four successive extractions with 25-mL portions of ligroin? How much ligroin would be required to remove 98.5% of A in a single extraction?
the enthalpy of formation = 0? Something with standard states? But how do I know what the standard states are
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