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Calculate the molality of a solution containing 5.51 g of glycerol (C3H8O3) in 76.5 g of ethanol (C2H5OH).
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?
A calorimeter that contains 2500 g of surrounding water is used to measure the heat associated with the reaction of 520 g of a reactant. Calculate the energy, in joules per kilogram of reactant, associated with the reaction
What is the molecular geometry of a molecule with 3 outer atoms and 2 lone pairs on the central atom
The solubility of CO2 in water at 25°C and 1 atm is 0.034 mol/L. What is its solubility under atmospheric conditions. (The partial pressure of CO2 in air is 0.0003 atm.) Assume that CO2 obeys Henry's law.
What is a sigma bond? What is a pi bond? Must a double bond have a sigma bond and a pi bond? Explain. I will look forward to hear from you all on this.
determine if a redox reaction would occur if you were to mix them in a single solution. For those pairs of substances that would not react, calculate the EOCELL of the unfavored reaction between the two substances.
Determine the mass in kg of one molecule of water.- Determine the mass in lbm of one molecule of methane.
A weather balloon at launch is partially inflated with 3.00 times 10 power 4l of helium at STP. what will be the volume of helium at an altitude of 7km, where the pressure is 0.41atm and the temperature is -20 degrees Celsius?
compute the pH at the temperature of twenty five degrees Celsius of a solution combined by adding 50 mL of 1.60 M sodium hydroxide solution
Given 25.00 mL of the unknown weak acid, 12 mL of NaOH solution was added to the unknown. Leave the unknown weak acid and NaOH concentrations as variables. The pH of the solution is 4.13. What is pKa for the acid
Platinum crystallizes into a cubic lattice structure that has a total of four Pt atoms per unit cell. (a) What type of unit cell does platinum form. (b) What is the mass of a unit cell of platinum
Question- Throughout the video there were various suggestions that came up that were useful tips for you to remember that would help make sure your titration was a successful one. Dr. Yee mentions a few, but there were also some that came up withi..
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