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How many grams of boric acid, B(OH)3 (FM 61.83), should be used to make 2.00 L of 0.0500 M solution? What kind of flask is used to prepare this solution?
When atoomic orbitals are hybirdized the s orbital and at least one p orbital are always hybirdized. III. to create tetrahedral structures the s orbital and all three p orbitals must be hybirdized.
The MO diagram after the Jahn-Teller tetragonal distortion is added for a d4 high spin complex
What is the freezing point of a solution of 224 g of ethylene glycol (C2H6O2) dissolved in 1000 g of water?
Calculate the weight of precursor salt needed to make 500 ml of a 2 M aqueous solution of the metal ion from each salt.
What is the pH of a solution that results from diluting 0.30 mol acetic acid (CH3CO2H) and 0.20 mol sodium acetate (NaCH3CO2) with water to a volume of 1.0 L?
Half-life equation for first-order reactions: (the 1/2 in t1/2 is a subscript) t1/2=0.693/k where t1/2 is the half-life in seconds (s) , and k is the rate constant in inverse seconds (s^-1).
Calculate the amount (in grams) of N-methylmaleimide and 9-(hydroxymethyl)anthracene that are required in a reaction utilizing 0.5mmol 9-(hydroxymethyl)anthracene (208.26 g/mol) and 3 molar equivalents of N-methylmaleimide (111 g/mol)
The emission spectrum of an unknown element contains two lines-one in the visible portion of spectrum and the other
calcuium hydroxide in an acid-base titration to neturalize an acid to the equivlant point. How many mols of potassium hydroxide would be needed to complete the same neutrization?
RNAse is an enzyme that cleaves the P-O5\' bond in RNA. It has two His residues in the active site. Suggest a plausible explanation
An aqueous solution of unoxygenated hemoglobin containing 5 g of protein (M= 64000 g/mol) in the 100cm3 of solution is placed in an insulated vessel.
calculate the molar concentration and the molarity of a sulfuric acid solution of density 1.198 g/mol,
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