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Life is dependent on four major classes of biomolecules. What are they? Why are they important?
Which antacid product would you expect to be more effective at neutralizing acid on the basis of mass of the active ingredient: tums or milk of magnesia?
H--C(triplebond)C--H Acetylene. The overall rate law for the polymerization is first order with respect to both acetylene and the catalyst used for the reaction. What, therefore, is the slowest step of an addition polymerization: initiation, propa..
diamond powder (C) and BaCO3, separates the mixtures and recovers 1.75g sugar, 0.86g diamond powder and 2.29g BaCO3(s). Calculate the percent recovery and percent composition if the initial mixture they started with weighted 5.08g
Bismuth oxide reacts with carbon to form bismuth metal: Bi2O3(s) + 3C(s) --> 2Bi(s) + 3CO(g)
Write the schematic shorthand notation chemists use to represent electrochemical cells for a cell where the anode consists of solid copper immersed in a 0.0100-M solution of copper (II) nitrate and cathode consists of solid silver immersed
A standard solution of sodium hydroxide has a molar concentration of 0.128M. You use 25.00ml of a solution of hydrochloric acid and this requires 32.75ml of the standardized sodium hydroxide solution to reach the endpoint. WHAT IS THE molar concen..
consider the reaction of 5.0g of propane with 10.0ml ofmolecular bromine to form 2,2 dibromopropane and hydrogenbromide. a. look up the molecular weight of propane (44.1) and calculate the moles of propane present before the reaction
If 29.7 mL of 0.0205 M KOH us required to completely neutralize 25.0 mL of a HC2H30 solution. What is the molarity of the acetic acid solution
There are two reason why the enols of beta-dicarbonyl compounds, such as pentane-2,4-dione are relatively stable. One is that they are conjugated and the pi-electron overlap due to the conjugation provides additional stability.
What is the specific heat for the metal? Express your answer with the appropriate units. B) The molar heat capacity of silver is 25.35 J/mol
Total pressure in kPa 10 seconds after initiation of the reaction if initially there was 88.3kPa of pure N 2 O 5 vapor Enter the total pressure in kPa 10 minutes after initiation of the reaction.
What is the enthalpy change when a 4.0 gram sample of aluminum burns in excess of oxygen to form aluminum oxide?
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