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The density of air at ordinary atmospheric pressure and 25 degrees C is 1.19 g/L. What is the mass in kilograms of the air in a room that measures 8.2 m x 13.5 m x 2.75 m?
Consider these aqueous solutions: 0.20m NH4Cl, 0.20m CaCl2, 0.25m NaCl, and 0.30m sugar. Assume these are all ideal solutions. Which solution has the lowest vapor pressure
When 36.6 L ammonia and 39.5 L oxygen gas at STP burn, nitrogen monoxide and water are produced. After the products return to STP, how many grams of nitrogen monoxide are present ............... g NH3(g) + O2(g) NO(g) + H2O(l)
Calculate the pOH of a solution that contains 3.9 x 10^-4 M H3O at 25 degrees celsius.
Why is a vapor unlikely to behave as an ideal gas near temperature at which vapor would liquefy?
calculate the number of molecules present in each of the following samples.
What is the concentration of OH- in a solution that contains 0.225g of NaOH in 0.250L of solutio.
Can somebody give me examples of how hard acid base theory can be used to predict reactivity. I understand that hard binds to hard and soft binds to soft, but could someone give me examples
Use the appropriate standard reduction potentials to calculate the value of k at 25 degrees celcius
What affect would an increased concentration of 2,3-BPG have on the oxygen-binding curve for hemoglobin. Why would this adaptation be beneficial for functioning well at high altitude?
The most stable form of bromine under standard conditions is as the diatomic molecule
At 500 K, PCl5 decomposes rather extensively into PCl3 and Cl2. If 1.000 moles of PCl5 is placed in a 1 liter box at 500 K, 13.9 % of it decomposes into PCl3 and Cl2. Calculate K for PCl5(g) PCl3 + Cl2
How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction below?SiO2(g) + 3 C(s) → SiC(s) + 2 CO(g) ?H for the reaction is +624.7 kJ/mol
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