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Question- How much work must be done on a system to decrease its volume from 11.0 L to 4.0 L by exerting a constant pressure of 5.0 atm?
Please answer only if you are 100% confident
To what temperature must the specimen be heated and how much Sn should be mixed to the 1.5-kilograms specimen at the temperature of twenty five degree celsius to achieve this state?
To what volume should you dilute 40.0ml of a 4.65M KI solution so that 27.0ml of the diluted solution contains 3.95g of KI ?2.) An aqueous NaCl solution is made using 111g of NaCl diluted to a total solution volume of 1.00L .Calculate the molality ..
At 1000 K, a sample of pure NO2 gas decomposes. 2 NO2(g) ->2 NO(g) + O2(g) The equilibrium constant KP is 158. Analysis shows that the partial pressure of O2 is 0.44 atm at equilibrium. Calculate the pressure of NO and NO2 in the mixture.
A reaction yields a colored product and the absorbance at a given wavelength increases at 0.2 per minute. The molar absorbtivity of the product is 4.0 ?M-1cm-1. What is the rate of product formation. Use correct units.
a student heated a .546 gram pure chemical in an atmosphere of oxygen gas until it had completely reacted the final chrominum compound weighed .798 grams what is the empirical formula of this compound?
How many total moles of ions are released when the following sample dissolves completely in water. 8.47x10^-2g of Ca(NO3)2
what is the % mass of acetic acid in the vinegar? Hint: What is the mass percent of aceditc acid titrated and what is the definition of % mass?
what is the solubility of O2 at an elevation of 12,000 ft where the atmospheric pressure is 0.657 atm? Assume the temperature is 25°C, and that the mole fraction of O2 in air is 0.209 at both 12,000 ft and at sea level.
which of the following solutes dissolved in 1000 g of h20 would provide a solution with the lowest freezing pts?
The element Vanadium is a solid bcc metal and room temperature and pressure. Please find the lattice parameter for metallic Vanadium and calculate its atomic radius from that value.
A fossil was analyzed and determined to have a carbon-14 level that is 62.0 that of living organisms. How old is the fossil
diluted to about 0.95 L of water. Calculate the approximate concentration of this solution.
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