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Problem- The observed melting point of camphor is often low. Look up the molal freezing point-depression constant K for camphor and calculate the expected depression of the melting point of a quantity of camphor that contains 0.5 molal impurity.
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Calculate the initial molarity of Ba(OH)2 and the molarities of Ba2+, OH -, and H3O+ in an aqueous solution that contains 0.70 g of Ba(OH)2 in 0.173 L of solution.
Calculate the % ionization in a 0.0902 M solution of acetylsalicylic acid (aspirin). The Ka of acetylsalicylic acid = 4 x 10-4. please show the steps to solving this type of problem.
how many moles of oxygen are consumed each time 0.500 mole of P2O5 is formed?
Calculate the value for the equilibrium constant Kp at this temperature. atm-2 If PN2 = 0.516 atm, PNH3 = 0.0172 atm, and PH2 = 0.00775 atm,
What is the number (actual count) of [H+] in 10 mLs of water at a specific pH (like pH 9, 7, 2 etc.)
how many cans of Mountain Lightning would an individual have to drink to die from a tartrazine overdose If the LD50 of tartrazine in humans is supposed to be 12,750 mg/kg (as it is for mice) and the average human weighs 70 kilograms,?
a solution of na2co3 of 50ml was titrated with 65.8ml of 3.00m hydrochloric acid. determine what by weight of sodium
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10.0 mL of a 0.30 M sodium phosphate solution reacts with 20.0 mL of a 0.20 M lead(II) nitrate solution (assume no volume change). What is the concentration of phosphate ions left in solution after the reaction is complete
Depict the Lewis structures for calcium carbonate as well as magnesium hydroxide. Set charges on the individual atoms according to their formal charges. Overlook resonance. Include all nonbonding electrons.
Problem- Part 1) Why reaction of 2-butanone with LiAlH4 results in the formation of a racemic mixture rather than a single enantiomeric product?
suppose that hydrogen atoms are prepared in the n=2 energy level. calculate the wavelength of light emitted by these excited atoms when returning to the ground state.
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