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Presume that 0.89g of water condenses on a 80.0g block of iron that is initially at 22C. If the heat released during condensation goes only to warming the iron block, explain what is the final temperature (in C) of the iron block? Presume a constant enthalpy of vaporization for water of 44.0 kJ/mol.
A mixture of CO, CO2 and O2 is contained within a 275 mL flask at 0C. If the total pres- sure is 780 torr, the CO has a partial pressure of 330 torr and the CO2 has a partial pressure of 330 torr, what is the partial pressure of O2?
Write a complete ionic equation and if there is a phase change you need to then write a net ionic equation and list the spectator ions sodium nitrate plus strontium chlorate equals sodium chlorate plus strontium nitrate
What is the cell potential at each of the given volumes as a. 5.00 mL,b. 12.00 mL,c. V equilvalence pointd. 48.00 mL of added Ce4+?
Calculate (a) the work done when the gas expands isothermally against a constant external pressure of 200 Torr until its volume has increased by 3.6 dm3, and (b) the work that would be done if the same expansion had occurred reversibly.
Larger molecules of hydrocarbons are broken into two or more smaller hydrocarbon molecules by a process known as
If 6.20 mol calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2) will be produced?
According to the Balmer-Rydberg equation, electromagnetic radiation with the shortest wavelength will be emitted when an electron undergoes which of the following transitions? (Balmer-Rydberg equation: 1/? = 1.09737 ? 107 m-1 (1/m2 - 1/n2)
determine the weight in grams of sodium dihydrogen phosphate nah2po4.h2o fw 138.01 and disodium hydrogen phosphate
Draw the skeletal structure of the major organic product given that excess NaOD
Given 479.5 g of hot tea at 83.0 *C , what mass of ice at 0 *C must be added to obtain iced tea at 10.5*C? The specific heat of the tea is 4.18 J/g*C, and change in H(fusion) for ice is +6.01 kJ/mol.
A solution of ammonia and water contains 3.50×1025 water molecules and 5.80×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
The frequency of vibration in a quartz watch is 33 kHz. What is the energy required to excite this vibration? Also compute omega for this vibration.
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