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An electrical component has two resistances of 10 Ω and 15 Ω connected in parallel.
(a) What is the total resistance of the component?
(b) If connected to a 120-V source, how much current would there be in each resistor?
at 700k the equilibrium constant kc for the gas phase reaction between no and o2 forming no2 is 8.7x 106 the rate
A particular first-order reaction has a rate constant of 1.35x102 at 20 degrees C. Explain what is the magnitude of k at 75 degrees C if Ea =85.6Kj/mol
What are two primary advantages of using nuclear power? Uranium reserves on our planet are 5 million metric tons.
The density of gold is 19.31 g/cm3, and the density of platinum is 21.43 g/cm3. If equal masses of gold and platinum are transferred to equal volumes of water in seperate graduated cylinders
find the ph of the resulting solution when 20.00ml of a 0.1000m triethylamine ch3ch23n kb 5.2x10-4 solution is
Write the balanced chemical equation for the neutralization reaction that occurs when an aqueous solution of hydrochloric acid (HCl) is mixed with an aqueous solution of potassium hydroxide (KOH).
If E(ethanol) and E(octane) are the energies per gram of fuel produced by ethanol and octane, respectively, calculations show that E(octane)/E(ethanol) is? [the standard molar enthalpy of formation of octane is -249.9 kJ/mol]
Cholesterol in blood is measured in milligrams of cholesterol per deciliter of blood. Hospital blood banks normally store blood in samples of 500 milliliter polyethylene bags.
4 liters of an ideal gas at 200 K is heated to 400 K. What is the gas's new volume assuming the number of moles and pressure remain constant
The bromocresolgreen end point of the titration was reached after the addition of 30.00mL of hydrochloric acid solution. Calculate the concentration of the acid solution
How many groups of chemically equivalent protons exist in the following compounds?
Suppose that 0.92 of water condenses on a 85.0 block of iron that is initially at 22. If the heat released during condensation goes only to warming the iron block, what is the final temperature (in ) of the iron block? (Assume a constant enthalpy ..
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