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What is a thermodynamic property of a system equal to the sum of its internal energy and the product of its pressure and volume?
a solution was prepared by dissolving 28.0g of kcl in 225g of water. calculate the mass percent of kcl in the
What mass of NO2 can be produced by the complete reaction of 48.00 g of ammonia with 95.00 g of oxygen
The average concentration of strontium ion in seawater is 8.00 mg of strontium ion per kg of seawater. What is the molarity of the strontium ion if the density of the seawater is 1.025 g/mL.
In certain part of the country ,there is an average of 710 people per square mile and o.72 internet services per person . what is the number of internet services in an area of 5.0km square?
How many joules of energy are needed to melt 27.0 of acetic acid? Heat of fusion (acetic acid)= 192J/g.
What are the H3 O^+ and OH^- concentrations of solutions that have the following pH values? A. pH1 B. pH 13 C. pH 0 D. pH 1.24 E. pH 7.96
Joe Schmoe mixed peroxide with yeast to generate oxygen gas and collected the gas in a graduated cylinder, using the same set up as was used in Experiment 11. He collected the following data
How many grams of oxygen gas are required to produce 7.68 kJ of heat when hydrogen gas burns at constant pressure to produce gaseous water?
the atmospheric pressure on clouds rest in yosemite is only 523mmhg. given that the hvap of water is 40.67 kjmol
What current (in Amps) is required to plate out 1.22 g of nickel metal from a solution of Ni2+ in 1 hour
Evaluate the pH of the subsequent solutions. In each case disregard the effects of ionic strength and assume that a(i)=c(i)
How does the entropy of the system PbI2(s) + H2O(l) change as PbI2(s) dissolves in water at 25°C?
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