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Explain a mixture of ideal gases having a total mass of 31.4 g is placed in a 9 L vessel at 324.0 K. If the equilibrium pressure is measured to be 2.4 bar. Compute the average molar mass of the gas mixture
Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n = 4 to n = 1. I need an explanation of the formula too.
an aqueous solution is prepared by diluting 3.30ml acetone ch3coh3 d 0.789gml with water to a final volumeof 75.0 ml.
soft drinks are canned under 4 atm of co2 and releaseco2 when opened.a how many moles of co2 are dissolved in a 355 ml
You believe your unknown compound is acetanilide that melts at 114-115 degrees, so you ask your professor for a sample of the pure compound to do a mixed melting point. You do the experiment and determine the mixed melting point is 106-110 degrees..
If an excess of ammonia is added to the solution, solid [Cu(NH3)4]SO4xH20 (molar mass = 245.61 g/mol) forms. What is the theoretical yield of product from the reaction?
explain why does atp synthesis occur in the presence of rotenone an inhibitor of one the reactions in the electron
What is meant by this term and how does an amphipathic molecule behave in water. Draw a diagram to illustrate
Calculate the molar solubility (often defined by s) of magnesium hydroxide in pure water. Ksp = 5.61 x 10?12. Do not forget to print a balanced dissociation equation. b. (7 points) Calculate the molar solubility of magnesium hydroxide in 0.050 mol..
What are some of the general properties that distinguish metals from ceramics and polymers?
The heat of vaporization, ?Hvap, of a certain liquid at 25oC is 11.8. kJ/mol. If one mole of the liquid has an entropy of 164 J/K, what is the entropy of one mole of the vapor in equilibrium with the liquid at this temperature
Write net ionic equations for the following molecular equations. HBr is a strong electrolyte. (Include states-of-matter under SATP conditions in your answer. Use the lowest possible coefficients.)
the reaction shown below occurs and the temperature of the resulting solution rises from 22.00°C to 61.16°C. If the specific heat of the solution is 4.18 J/(g ? °C), calculate delta H for the reaction, as written. Ba+2H2O--->Ba(OH)2+H2 Delta H?
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