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Consider the following reaction at constant P. Use the information here to determine the value of ?Ssurr at 298 K. Predict whether or not this reaction will be spontaneous at this temperature.N2(g) + 2 O2(g) ? 2 NO2(g) ?H = +66.4 kJ
A chemistry lab experiment requires 36.3 g of silver nitrate. How many grams of a 12.5% by mass solution of silver nitrate should be used?
A student performs an extraction using water and methylene chloride. Which is the top layer and which is
The reaction between 0.0459g of magnesium with excess of HBr was carried out in an ice calorimeter. The volume of water in the calorimeter decreased by 0.18mL during the reaction.
when cyclopentane is exposed to Br2 in presence of light. Write the formulas of all possible dibromination products. Draw molecule by placing atoms on grid.
Determine the ΔH solution for this compound If the heat of solvation for this compound = -30.8 kJ/mol , crystal lattice energy = -62.2 kJ/mol.
How many mL of each solution should be diluted to 500 mL to make 0.100 M reagent?
Balance the following molecular equations for these reactions. Write the ionic equation for the reactions. Write the net ionic equation for the reactions.
suppose that 2.00L of solution are made from 150. mg of citric acid, C6H8O7, A. what is the molar mass of citric acid? B. what is the molarity of citric acid in the solution?
If the pressure exerted by ozone, {rm{O}}_3, in the stratosphere is 3.0 times 10^{ - 3} {rm{atm}} and the temperature is 251 K, how many ozone molecules are in a liter?
compound has been analyzed and found to contain the following masses of elements: Carbon 0.2990g, hydrogen 0.05489g, nitrogen 0.2318g, and oxyen 0.1328g. calculate the tmpirical formula of the compound.
Assuming that the specific heat of water is 4.18 J/(g ? °C), and that the heat absorption by the calorimeter is negligible, estimate the enthalpy of combustion per mole of anthracene
Calculate the percent enantiomeric excess of the contents of the bottle labeled as just menthol. For the purchased sample what percentage of (-)-menthol is indicated by this measurement?
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