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Calculate the pH of a 1.00 L solution which is made up of 0.046 mol acetic acid and 0.026 mol sodium acetate. (Ka for acetic acid is 1.8x10-5.)
Toluene is a liquid compound similar to benzene. Calculate the mole fraction of Toluene in a solution that contains 112 g Toluene and 221 g Benzene.
Write a balanced combustion reaction for natural gas composed of 90 mol% methane and 10 mol% ethane. [Fractional moles are convenient for the subsequents calculations. Your reaction should have .90 mol methane and .10 mol ethane on the left side. ..
What scientific principle or law is used in the process of balancing chemical equations. Define the terms limiting reactant and excess reactant.
A mixture of sand and iron pieces weighs 53.29 g. Using a magnet, the iron is removed and weighs 15.63 g. What is the percent composition of sand in the mixture?
A compound has a molar absorptivity of 3.71*10^3 L cm^-1 mol^-1. What concentration of the compound would be required to produce a transmittance
In fermentation of glucose, 780 mL of CO2 gas was produced at 37 degrees C and 1.00 atm. What is the volume(L) of the gas when measured at 22 degrees C and 675 mmHg?
What is the empirical formula? What is the molecular formula? How many grams of oxygen gas were used to oxidize the original 2.035 grams of compound?
A plot of ln[AV] versus t (s) gives a straight line with a slope of -0.32s^-1. What is the value of the rate constant (k) for this reaction?
Why is the water bath used to heat the reaction? 4)What is the mechanism of the reaction of phenylmagnesium bromide and CO2? Include the workup steps. 5) In this experiment, it is important to use freshly obtained dry ice. Why?
a chemical reaction produces 0.884mol of H2S gas. what volume will that gas occupy at STP?
What velocity would an electron 9.11*10^-31 kg need for its de Broglie wavelength to be that of red light 745nm ?
In the reaction below, how many liters of CO2 gas are produced from the combustion of 55.0 L of CH4 gas?
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