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A 0.50 sample of vegetable oil is placed in a calorimeter. When the sample is burned, 18.9 are given off. what is the caloric value of the oil
FOr the balanced equation shown below, how many moles of Fe3O4 will react with 1.02 moles of CO, to form how many moles of FeO
what is the frequency of the photons emitted by hydrogen atoms when they undergo transistions from n=5 to n=3
Which two starting materials are needed to prepare the following compound
Calculate the mass of propylene glycol that must be added to 0.330 of water to reduce the vapor pressure by 2.88 torr at 40°C (Pressure of H2O is 55.3 torr at 40°C ).
Next, you add 1.00 mL of 1.35 × 10-6 M lidocaine to this mixture Denoting lidocaine as L, calculate the fraction of lidocaine present in the form LH .MOPS Buffer Ka = 6.3 × 10-8. Lidocaine Kb = 8.7 × 10-7, calculate the fraction of lidocaine prese..
Calculate the Energy of dissolving in kilojoules/mole if 2.56 grams of CaBr2, calcium bromide, are dissolved in 50 mL of water in a calorimetric cup with a temperature rise of 4.5° C
a solid block of exactly 100.0 cm cubed has a mass of 153.6g. Determine its density.Will the block sink or float on water.
Estimate the equilibrium constant for the weak base C6H5CH2NH2, if a 4.53×10-1 M aqueous solution of C6H5CH2NH2 has a pOH 4.84 (make an exact calculation assuming that initial concentration
An antacid tablet containing magnesium hydroxide instead of calcium carbonate was dissolved in 10 mL of 0.2893 M HCL. 10 mL of this solutions was tritated to endpoint with 25.20 mL of 0.1007 M NaOH. How much magnesium hydroxide was in the antacid ..
Calculate the PH and [SO42-] in 500. ml of sulfuric acid solution that was made by dilution of 13.3 mL of 3.0 stock soultion
Electron dot formulae (Lewis structures) with only the valence electrons, show the bonding - Write balanced equations
how many joules of heat are needed to raise the temperature of 591 grams of water from 25C to 55C?
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