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Calculate the standard emf of a cell that uses the Mg/Mg^2+ and Cu/Cu^2+ half-cell reactions at 25 degrees celsius. Write the equation for the cell reaction that occurs under standard-state conditions.
Phosphorous acid, is an important compound in industry and agriculture, H3PO3(aq), is a diprotic oxyacid .determine the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq).
Which of the following best describes carbon dioxide (CO2) at room temperature and pressure A) polar molecular gas B) nonpolar molecular gas C) covalent network solid D) ionic solid E)metallic solid An explanation of why would be great too
What shape do you expect for molecules that meet the following descriptions. (a) A central atom with two lone pairs and three bonds to other atoms (b) A central atom with two lone pairs and two bonds to other atoms
how many moles are present of an ideal gas at the following conditions: 1.0 atm, 25.0 C, and occupying 22.4 L, The Lewis structure for PF3 shows that the central phosphorus atom has _______ nonbonding and
What volume of solution should be dispensed from the buret to provide 5.633 mmol CO2-3 ? Answer in units of mL.
Balance the following reaction, which occurs in acidic aqueous solution, using the smallest possible integer coefficients and adding H+ and H2O as necessary
Pure colored substances mostly exhibit a single peak (i.e. max) in the visible; therefore the simple rules of complementary colors apply. Mixtures are a little more complicated.
Use electronegativity values to arrange the following bonds in order of decreasing polarity: N-O, N-N, N-P, and C-N
If 3.8 kcal is released by combustion of each gram of glucose, how many kilocalories are released by the combustion of 1.41 mole of glucose?
The arrangement of the orbitals is the same in a multielectron atom and a single-electron atom. In the Li atom, the 3s, 3p, and 3d orbitals have different energies. The He atom has one electron each in 1s and 2s orbitals.
1) Draw the form (structure) of ascorbic acid that is present at physiological pH (in the body; pH= 7.4). What diseases can be prevented and/or treated by the intake of ascorbic acid?
A student recrystillized 500 mg of an impure sample of naphthalene using methanol-water solvent pair and obtained 150 mg dried crystillized product
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