What are the mole fraction and the mass percent of csbr
What mass of cesium bromide must be added to .500 L of water (d =1.00g/mL) to produce a 0.687 m solution? What are the mole fraction and the mass percent of CsBr?
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Write the Henderson-Hasselbalch equation for a solution of propanoic acid (CH3CH2CO2H, pKa = 4.874 ) using HA and A- in the expression. pH= ? Using this equation, calculate the quotient
Calculate the work done if a gas is compressed from 7.8 L to 2.6 L at constant temperature by a constant pressure of 2.1 atm, and give your answer in units of joules. (1 L · atm = 101.3 J)
Calculate the quantity of heat released when 5.00 g of H2O2(l) decomposes at constant pressure.
Consider the following reaction at 298 K. 2 SO2(g) + O2(g) ? 2 SO3(g) An equilibrium mixture contains O2(g) and SO3(g) at partial pressures of 0.42 atm and 1.5 atm, respectively. Determine the equilibrium partial pressure of SO2 in the mixture.
For chemical reactions involving ideal gases, the equilibrium constant K can be expressed either in terms of the concentrations of the gases (in M) or as a function of the partial pressures of the gases
Calculate the work (in kJ) when 1.70 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K
Why must we know both in order to explain the physical properties of the molecule. physical properties to be considered are solubility and the points when the molecule changes states
It took 4.36 min with a current of 3.14 A to plate out all the silver from 0.146 L of a solution containing Ag+. What was the original concentration of Ag+ in the solution
Calculate the pH when 4.73 g of HCOONa is added to 211.0 mL of 0.50 M formic acid, HCOOH. Ignore any changes in volume. The Ka value for HCOOH is 1.8 x 10-4.
Calculate the work (in kJ) when 2.60 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K: 2Na(s) + 2H2O(l) ? 2NaOH(aq) + H2(g)
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