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A 15-gram sample of neon is placed in a sealed container with a constant volume of 8.5 liters. If the temperature of the container is 27ºC, which of the following expressions gives the correct pressure of gas? The ideal gas constant, R, is 0.08 L·atm/mol·K.
Write one overall equation, using an alkali metal ion and a nitrate ion as spectator ions if needed, for the following net ionic equation: H+(aq) + OH-(aq) ? H2O(l)
Define an attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. Suppose the mixture had an observed specific rotation of 16.5°. If it is known that the specific rotation of the R enantiomer is -31.1°..
What is the total number of lone pairs on the central atom in the "correct" or "best" Lewis structure of the following compounds? What is the electron group geometry of the central atom? What is the molecular shape at the central atom for the follo..
Determine how much heat is released when 14.8 kilo grams of Ethylene forms and The Hydrogen gas is collected over H2O(water) at a temperature of twenty five degree celsius and a total pressure =762 mmHg. (The ideal gas law constant R = 0.0821L*atm/..
Describe how to prepare a 500.00mL of a pH 10.00, 1.00M carbonate buffer using the following reagents- NaHCO3 (FM 84.007 g/mol), 6.0M HCl and 6.0M NaOH (H2CO3 Ka1 = 4.46x10 -7. Ka2 = 4.69x10 -11)
A buffer is made by mixing 0.241 moles of acid with 0.217 moles of its conjugate base. 0.01 moles of NaOH is added to the buffer. Find the pH of the resulting solution
A white powdery solid, and asked to evaluate its purity and to determine whether it might be identical to a given sample of an illegal drug, a white crystalline solid. Clearly explain what you would do, and how you would interpret your results.
Calculate the pH of a solution of 15 mL K2HPO4 at 0.1 molarity,
You have a system with a movable piston that is isolated. The reaction inside the system is under adiabatic conditions. When the reaction (the burning of butane in oxygen) is started, the distance the piston traverses is 30.00 cm at 1.000 atm of p..
consider the following unbalanced equationca3po42 h2so4 ---gt caso4 h3po4what masses of calcium sulfate and
What is the concentration of an KOH(aq) solution which requieres 25.00mL to titrate 42.30mL of 0.0250M H2SO4(aq) 2KOH(aq) + H2SO4(aq) -> K2SO4(aq) + 2H2O(l)
Identify the reactant acting as an acid and the reactant acting as a base. Indicate whether the acid is Bronsted Lowry acid, Lewis acid or both.
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