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what is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point of 102.45 0C?
A solution of ammonia and water contains 2.10×1025 water molecules and 5.30×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
with vapor pressures at room temperature of 88, 680, 155, respectively, in order of decreasing boiling points.
Diethyl ether C4H10O(l), a flammable compound that has long been used as a surgical anesthetic has a structure
Nitrogen gas reacts with hydrogen gas to make ammonia(NH3). 15.5 L of N2 reacts at STP to make 30 L of ammonia. What is the percent yield?
how many moles of N atoms are there in .882 moles of (NH2)2CO?
undergo combustion according to the unbalanced equation C2H6+O2=CO2+H2O how many moles of oxygen are required?
When 2.8>g of NaOH were dissolved in 53.8>g of water in a calorimeter at 24.4oC, the temperature of the solution went up to 38.6oC. Find the value of delta H for one mole of NaOH.
An aqueous solution of NaNO3 is 22.0% NaNO3 by mass. The density of the solution is 1.127 g/mL. Calculate the molality, the molarity and the mole fraction of NaNO3.
If a second experiment is done with half as much H2O2 as the experiment in question 1, and the solution turns blue in 180 seconds, what is the order of the reaction with respect to H2O2?
The solubility of CaSO4 in pure water at 0oC is 1.13 gram(s) per liter. What is the value of the solubility product.
What is the first step in the reaction sequence of Aldol reactions under basic conditions? a. Removal of the aldehyde proton b. Removal of an alpha proton to form the enolate
How many kilocal are required to increase the temp of 15.6g of iron from 122C to 355C? the specific heat of iron is
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