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A solution made by dissolving 1.50g of solute in 25.0 mL of H2O at 25 degrees C has a boiling point of 100.45 degrees C. What is the molar mass of the solute if it is a nonvolatile non electrolyte and the solution behaves ideally? (d of H2O at 25 degrees C = 0.997 g/mol,Kb of H2O=0.512 degrees C/m)
A gas has a mass of 0.305 g, volume of 25 ml at 2 ATM and 0 degrees Celsius. The gas consists of bromine and fluorine. What is the molecular weight and the chemical formula
The previous best inhibitor is drug candidate AAA, with a Ki value of 10^-6 M. The following data has just come in from the lab for a modification of the same drug candidate, BBB.
Calculatethe number of grams of alcohol present in 1.00L of 75 proof gin The density of ethanol is 0.798g/mL.
How many moles of NaOH would be required to completley neutralize 37.22mL of 0.25M HCl.
the cup is a volume widely used by cooks in the u.s. one cup is equivalent to 237 cm3. if 1 cup of olive oil has mass
What is the lewis structure for NBr3. How many electron pairs in the central atom of NBr3. How many bonding electrons pairs of the central atom of NBr3
What is the effect on Kc when the temperature of an exothermic reaction is lowered. according to le chatelier's principle how is equilibrium in part a reached
methyl alcohol ch3oh is made by reacting carbon monoxide with h2. starting with 2.5 g of h2 and 30 l of co what mass of
A sample containing 0.35 mol argon gas at a temperature of 13 C and a pressure of 568 torr is heated to 56 C and a pressure of 897 torr. A. What is the original volume of the gas? B. What is the new volume of the argon gas?
Explain why the major product that results from the synthesis of an azo dye corresponds to addition of the arene to the distal nitrogen of benzenediazonium.
according to a study of us cigarette sales between 1955 and 1985 when the price of cigarettes was 1 higher consumption
The equation for the combustion of gaseous methanol is: 2CH3OH(g) + 3O2(g) ? 2CO2(g) + 4H2O(g) Estimate the ?H°rxn per mole of methanol combusted
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