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A graduated cylinder contains 10.0ml of water. If the volume of a single water molecule is 2.99 x 10e-23 cm e3, how many molecules are in the graduated cylinder?
We have a 0.0100 M solution of ammonium acetate (Nh4C2H3O2), an ionic compound that dissociates completely in water. The ammonium cation is a weak acid (pKa=9.24) and the acetate anion is the conjugate base of acetic acid, another weak acid (pKa=..
What ions will the following elements form? Enter the letter of the item in Column Two that best matches the item in Column One.
Determine the rate law and the numerical value for K based on the following data :
Determine the molecular formula of a compound which has a empirical formula of CH3 and a molar mass of 60.0 g/mol.
In the directions it states "weigh about 5 grams of sodium chloride". Give minimum and maximum amounts of sodium chloride that would satisfy these instructions.
What is the Vmax of this enzyme when enzyme concentration is equal to 0.2mg/mL? I understand the equation to find kcat is: kcat = Vmax/[E]t however,
What is the molarity of a sodium chloride solution if 2.45 grams of NaCl is dissolved in 250 mLs of water? C. How many grams of solute are in 1.75 Liters of 0.460 M sodium monohydrogen phosphate
A second-order reaction A?B begins at noon with [A] = 0.1 M. If the rate constant k = 0.033 M-1 s-1, at what wall clock time will [A] = 0.01 M
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5.
The reusable booster rocket of the U.S. space shuttle employs a mixture of aluminum and ammonium perchlorate for feul. the chemical reaction that occurs is
A 24.9 mL volume of HCl reacts completely with 55.0 mL of aqueous Na2CO3. The reaction is as follows:2HCl (aq)+ Na2CO3(aq)-> CO2(g)+H2O(l)+2NaCl(aq)
Calculate the k value associated with the reaction at 25 degrees celcius given the Gibbs free energy of formation of N2H4 is -419.15Kj/mol
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