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Calculate the molar Gibbs free energy (in kJ) of mixing 5moles of He(g) with 10moles of H2(g). The separate gases and the gas mixture are all at a pressure of 1 bar and at a temperature of 36oC. Assume that both the separate gases and the mixture behave ideally.
write the balanced net ionic equation for the reaction that occurs when 0.1 m solutions of copperii sulfate and calcium
What are the protons and neutrons that are emitted from a helium atom called? Atomic mass is expressed in atm.
Suppose helium nuclei has exactly the same mass as adding two single protons and neutrons, the Sun's luminosity would be
A 2.747 g sample of manganese metal is reacted with excess HCl gas to produce 3.22 L of H2 (g) at 373 K and 0.951atm, as well as a manganese chloride compound (MnClx). Explain what is the formula of the manganese chloride compound produced in the ..
What is the Molarity of a solution prepared by diluting 55mL of .65 M hydrochloric acid solution to a final volume of 155mL by adding water.
Use the following reaction to find out how many grams of H2O you need to react with 5.67*10^-2 moles of Li2O Li2O + H2O ---------> 2LiOH
Take N3 as the independent variable and solve for N2 in terms of N3. Then solve for N1 in terms of N2 and N3. b. Taking note that there cannot be a negative population, what are the possible values of N3 ?
Express the concentration of a 0.0260 M aqueous solutioin of fluorire, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
The molar volume of Al2O3 at 25°C and 1 atm is 25.715 cc/mole. Its coefficient of thermal expansion is 26·10-6 K-1 and the coefficient of compressibility is 8.0·10-7 atm. Estimate the molar volume of Al2O3 at 400°C and 10 kilobars pressure.
10.0 mL sample of aqueous HCL requires 32.34 mL of 0.108 M NaOH to reach the endpoint. What is the molar concentration of HCL. the equation for reaction is NaOH+HCl ..... NaCl + H2O
What volume in mL of 2.00 M sodium bicarbonate solution is needed to neutralize 25.0 mL of 4.00 M HCl?
Compute the molarity of a solution made by adding 31.0mL of concentrated perchloric acid (70.5 % by mass, density 1.67 g/mL) to some water in a volumetric flask, after that adding water to the mark to make exactly 250mL of solution.
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