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Write down the time - independent and time - dependent Schrodinger equations of a particle with mass m confined in the one-dimensional potential (1/2)kx^2 , where k is some constant.
How can ethidium ions cause mutations in DNA and what type of interactions exists between the DNA and ethidium ions?
When a 17.0 mL sample of a monoprotic weak acid is titrated with 0.10 M KOH, it generates the titration curve shown. a) What is the molar concentration of the original sample of weak acid?
You have 50 ml of an 86% (w/v) glucose (C6H12O6) solution. How many grams of glucose are in the solution?
the heat calculated after a calimetry experiment is equal to the enthalpy change for reaction. Use the thermochemical data to calculate the enthalpy chanfe for the reaction of NaOH and CH3COOH.
choose the correct answer for the atom using the periodic chart. Larger atomic or ionic radius, F or F(-)
Consider the following reactions and select the false statement below. CO2(g) + OH?(aq) ? HCO3?(aq) Cr3+(aq) + 6H2O(l) ? Cr(H2O)63+(aq) A. in Cr(H2O)63+ the Cr3+ is attracted to the H2O molecules via ion-dipole intermolecular forces
what volume of hydrogen at STP is produced from the reaction of 50.0g of Mg and the equivalent of 75g of HCl?
Addition of silver nitrate solution results in a precipitate. Assuming that the heat capacity of the solution is the same as pure water, use enthalpies of solution and solubility rules to identify the salt.
The titration of 0.7910 grams of an unknown weak acid requires 41.5 mL of 0.139 M NaOH in order to reach the equivalence point.
Identify the two important classes of catalysts. Choose a catalyst that exists in the human body. Explain its importance and how it works.
Propylamine, also known as n-propylamine, is an amine with the chemical formula C3H9N. Propylamine is a weak base with its Kb equaling 4.7 * 10^(-4). Calculate the pH of 0.59 M solution of propylamine hydrochloride.
Calculate the morality of a solution made by dissolving 0.750 grams of Na2 SO4 in enough water to form exactly 850 mL of solution. How many moles of KMnO4 are present in 250 mL of a 0.0475 M solution?
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