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Show multistep reduction mechanism of reduction of aldehyde. Show how all four hydrogens in sodium borohydride can act as a reducing agent hydride. What is the minimal amount of NaBH4 is needed for reduction of 1 mole of aldehyde.
The student uses 19.5 mL of 0.535 M NaOH to titrate the solution. Calculate the moles of acid neutralized per grams of tablet.
A 100 liter air tank housed in a gas station ruptured suddenly and air originally at 5atm escaped to the surroundings at 1atm and 25°C. Find ?S of air, had it been let out slowly in a reversible manner
A pt has a blood Ca level of 4.6 mEq/L If 1mol Ca2+= Eq Ca2+ what is the blood calcium levle in mg/dl
A volume of 80.0 mL of a 0.520 it M HNO_3 solution is titrated with 0.590 it M KOH. Calculate the volume of KOH required to reach the equivalence point?
the slopes corresponding to standard Beer's Law plots were as follows: ?IA = 0.072 ?IB = 0.306 ?IIA = 0.760 ?IIB = 0.036 Using this data, calculate the ratio between the relative concentrations of MR- and HMR in this solution.
Write the balanced molecular equation using K+ and Cl- as the spectator ions. If you were to balance the following equation that occurs in basic solution, how many electrons are being transferred overall?
The temperature of 55.6 grams of a material decreases by 14.8 degrees C when it loses 3080 J of heat. What is its specific heat?
If 10.00 mL of 0.050M KI solution is mixed with 40.00 mL of other reagents what would be diluted concentration of KI
A sample of an unknown biochemical compound is found to have a percent composition of 45.46% carbon, 7.63% hydrogen, 10.60% nitrogen and the balance oxygen. What is the empirical formula for this compound
The mass of an electron is 9.109 x 10-?31 kg. What will be the velocity of the escaping electrons under these conditions. What is the de Broglie wavelength of the escaping electrons
When dissolved in your stomach (pH=1) the concentration of aspirin (acetylsalicylic acid Ka = 3.0 x 10 ^-4) is 0.2 M. Calculate the % ionization of the aspirin.
what is the molarity of a solution prepared by adding 132 grams potassium chloride to enough water
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