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A 75 W electric blanket runs at 18 V. What is the resistance of the wire in the blanket? How much current does the wire carry?
Water in an enclosed vessel at 17°C contains a concentration of dissolved oxygen of 6 mg/L. At equilibrium, determine the concentration of oxygen in the space above the water in molal fraction. and the total pressure in the vessel. Henry's law con..
The molecular formula is C4H10N2. •There are no ? bonds in the structure. •The compound has no net dipole moment. •The compound exhibits very strong hydrogen bonding.
The enthalpy of combustion for propane is -2044 kJ/mol. How many liters of propane (at STP) must be burned in order to convert 400 grams of ice initially at -9°C to liquid water at 84°C
if the reaction between iron III ion and thiocyanate ion yielded an equilibrium concentration of .15M for each of these ions, what is the equilibrium concentration of the red iron III-thiocyanate complex
calculate the molarity of acetic acid in a vinegar sample knowing that 5.00 ml of vinegar requires 43.50ml of 0.105m
The test tube contained some water (besides the metal) that was subsequently added to the calorimeter. Considering a higher specific heat for water, will the temperature change in the calorimeter be higher, lower, or unaffected by this technique e..
what is the charge on magnesium iodide? what does the charge on the magnesium ion have to do with the number of valence
Calculate the volume, in liters, of a 4.92 mol H2S(g) at 60 degrees C and 1.75 atm how do you do this
At a certain temperature, reaction has equilibrium constant (Kc) of 1.9 x10^19. Determine the equlibrium constant for the reaction based on this information at the same temperature.
calculate the mass kg of the solute c4h8o and the volume ml of the solvent c6h6 that should be combined to generate
Chlorine dioxide is used for bleaching wood pulp. At a particular temperature, 35% of the molecules have a speed greater than 400 m/s. If the sample is heated slightly, what happens to the % of molecules with a speed greater than 400 m/s
3 moles of an ideal gas are compressed isothermally from 60 to 20L using constant external pressure of 5 atm. Calculate q, w, deltaE and deltaH
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