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Calculate the potential energy of an object whose mass is 56.90kg when dropped from a height of 2150.cm. Round your answer to the nearest tens place.
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The partial pressures of gas B dissolved in liquid A at 298 K are listed in the table below. If the vapor pressure of pure B at this temperature is 9500 Kpa, does this solution obey Raoult's Law
A system that had work done on it but which receives or loses no heat from or to the surroundings has
Molecular iodine, I2(g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s-1. What is the half-life for this reaction
How will the following changes alter the concentration of CO2(g) in the following reaction exothermic reaction? C6H12O6(s) + 6O2(g) 6CO2(g) + 6H2O(g)
a small body was launched up an inclined plane set at an angle alpha 15deg against the horizontal. find the
Proteins are biopolymers formed via multiple condensation coupling of which two functional groups
A solution of ethanol (C2H5OH) in water is prepared by dissolving 60.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 235.0 mL of solution. What is the molarity of the ethanol in this solution?
The initial solution pH depend on both the Ka and the concentration of the weak acid, so measuring the initial pH very accurately may be sufficient to determine both these unknowns.
It takes 48.0J to raise the temperature of an 9.60g piece of unknown metal from 13.0c to 24.0. What is the specific heat for the metal? Express your answer numerically, in J/g.C
Lead metal is added to 0.100M Cr3+(aq), Pb(s) + 2Cr3+(aq) -> Pb2+(aq) + Cr2+(aq)
The solubility of AgBrO3 in aqueous solution depends on the presence of other substances in solution. Relative to its solubility in H2O the solubility of AgBrO3 is ______ in 0.10 NaBrO3(aq) and ____ in 0.10 M AgNO3(aq).
What is the concentration of the resulting solution? (b) What volume of a 0.246M Calcium Phosphate solution is needed if it contained 74.69g of Calcium Phoshate
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