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The specific heat of a certain type of metal is 0.128 J/(g⋅ What is the final temperature if 305J of heat is added to 64.6 g64.6 g of this metal, initially at 20.0 C?
If the Empirical formula of a certain hydrocarbon is CH2. When 0.131 mole of the hydrocarbon is entirely combusted with excess oxygen, 16.1L CO2 gas is produced at 27 degrees c and 1.00 atm. Define what is the molecular formula of the hydrocarbon
Derive an expression for the instantaneous temperature as a function of the instantaneous pressure, and use it to sketch T/Ti vs P/Pi.
Determine the hydronium ion concentration and the pH of a solution that is .1M Na2H2PO4 and .15M Na2HPO4
What weight of A would be removed by four successive extractions with 25-mL portions of ligroin? How much ligroin would be required to remove 98.5% of A in a single extraction?
When 0.231g of phosphorus reacts with chlorine to form phosphorus trichloride, in a coffee cup calorimeter of heat capacity 216J/degreeC, the temperature of the calorimeter rises by 11.06C
KOH(aq)+ CoCl2(aq) --> KCl + Co(OH) what are the states of matter for the products?
A rigid tank of volume 0.5 m^3 is connected to a piston cylinder assembly by a valve, as shown below. Both vessels contain pure water. They a re immersed in a constant-temperature bath at 200°C and 600 kPa
Communicate the results in a lab report. Including: Question, Hypothesis, Materials, Observations, Results, Discussion, Conclusion, References. Be sure to include your calculations for determining the molar concentration of both the strong and weak a..
A would-be around-the-world balloonist is preparing to make a trip in a helium-filled balloon. The trip begins in early morning at a temperature of 15oC. By mid-afternoon, the temp has increased to 30oC. Presuming the pressure remains constant at ..
Explain why, in the base-catalyzed halogenation of acetone, the second and third halogenations occur on the same carbon as the first, and not on the carbon or the other methyl group.
Determine the equilibrium constant for the reaction below at 25*C. H3PO4(aq) + NH3(aq) NH4+(aq) + H2PO4-(aq)
Dinitrogen monoxide is still used as a general anesthetic. The Henry's law constant for the solubility of N2O in water is 2.5 x 10^ -2 mol/L x atm. What is the molar solubility of N20 in water if the partial pressure of N2O is 1500 mm Hg
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