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When a 110 gram peice of metal at 80 degrees celcius is placed in 220 grams of water at 0 degrss celcicius the metal is cooled and the water is warmed and both come to a final temprature of 20 degrees celcius. What is the specific heat of the metal?
If 1L of .15M NaOH is unprotected from mmol of CO2, what will be its new molarity when it is standardized agains a standard solution of HCl using
Compute the equilibrium constant, Keq, for the reaction of equimolar amounts of acetophenone, C6H5COCH3, and hydroxide ion to generate the enolate ion.
the second-order reaction 2 mnco5 mn2co10 has a rate constant equal to 3.0 x 109 m-1 s-1 at 25degc. if the initial
consider the analysis of manganese in flour by atomic absorption. a 0.1015g sample of flour digested with h2so4 and
Using the same sample of gas ( = 275 , = 43 ), we wish to change the pressure to 2750 with no accompanying change in volume or amount of gas.
A compressed air tank carried by scuba divers has a volume of 9.5 L and a pressure of 130 atm at 20 C. What is the volume of air in the tank (in liters) at STP?
what is the maximum pressure that will be attained in the tank before the plug will melt and release gas?
Exhaling during breathing is doing work since air is moved against atmospheric pressure. Calculate the work done in J when 0.500L of air is exhaled into an empty balloon at an atmospheric pressure of 1.00 atm.
a 1- l flask is filled with 1.40 g of argon at 25?. a sample of ethane vapor is added to the same flask until the total
So what have we discovered? What is the elemental identity? Show work in detail please. Displacement - 0.00202 L
Carbon monixide reacts with steam to produce carbon dioxide and hydrogen. At 700 k the equilibrium constant is 5.10. calculate the equilibrium concentrations of all species if 1.000 mol of each component is mixed in a 1.000-L flask.
In a calorimetry experiment, 0.497 g of potassium hydroxide are dissolved in 25.o ml of water (density = 1.00 gml, specific heat = 4.184 j g-1 °c-1) in an insulated container. the temperature of the water rises from 21.37 °c to 26.25 °c.
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