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Calculate the expected change in temperature for 1.7 g of NH NO dissolved in 50.0 2 cal mL of H O. Assume that the calorimeter absorbs no heat. (ie. C =0)(Remember to use dimensional analysis
At what temperature does the average speed of an oxegen molecule equal that of an airplane moving at 580 mph? Im confused on the setup.
Suppose y was measured five times and average of these five measurements was 3.24. What is the uncertainty in x based on these five measurements
A nuclear explosion generates so much heat that it turns steel structures in the immediate area into steel vapor. What is the correct name of the type of phase transition that is represented by this process
Why do we use an ethyl acetate/hexane mixture as a solvent in reaction of cyclopentadiene with maleic anhydride, rather than just pure hexane or ethyl acetate?
a certain anesthetic contains 64.9 percent C, 13.5 percent H, and 21.6 percent O by mass. at 120 grades celcius and 750 mmHg, 1.00 L of the gaseous compound weighs 2.30g. What is the molecular formula of the compound?
A toothpaste contains 0.24% by mass of sodium fluoride used to prevent caries (cavities) and 0.30% by mass of triclosan (C12H7Cl3O2). A PRESERVATIVE + ANTIGINVITIS AGENT.
What is the value of Keq for the reaction 4 HCl(g) + O2(g) reverse reaction arrow 2 Cl2(g) + 2 H2O(g)?
How many grams of barium sulfate are produced if 25.34 mL of 0.113 M BaCl2 completely react given the reaction.
Calculate the binding energy for Cf-253 if one atom of this nuclide has an atomic mass of 253.08417. Express your answer in units of picojoules/nucleus where 1 picojoule = 1x10-12 joule
There are two common polymorphs of zinc sulfide: cubic and hexagonal. Based on the analysis of Madelung constants alone, predict which polymorph should be more stable.
if temperature and pressure remain constant, how does the volume of a gas sample vary with the number of moles of gas present
the weak base methylamine is titrated with 0.10 M HNO3. Calculate the pH after 20.0 mL and 60.0 mL acid addition (HNO3).
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