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A balloon has a volume of 1.75L at a temperature of 25°C. What will be the volume of the balloon if you take it out into the winter cold air at -15°C?
Methane reacts with oxygen to form carbon dioxide and water as shown:. determine how much methane must have reacted If 72 grams of water is formed,?
A cylinder of oxygen gas contains 26.4 g of O2. Another cylinder, twice the volume of the cylinder containing oxygen (and at the same conditions of pressure and temperature), contains CO2 gas.
How many grams of dry NH4Cl need to be added to 2.10 L of a 0.500 M solution of ammonia, to prepare a buffer solution that has a pH of 9.00? Kb for ammonia is 1.8*10^-5.
Gas ammonia can be decomposed to give 3.00 by mass of hydrogen and 14.0 by mass of nitrogen.what mass of nitrogen is obtained.
The second-order reaction 2 Mn(CO)5 Mn2(CO)10, has a rate constant equal to 3.0 x 10^9 M-1 s-1 at 25C. If the initial concentration of Mn(CO)5 is 2.0 x 10-5 M, how long will it take for 90.% of the reactant to disappear?
The element lanthanum has two stable isotopes, lanthanum-138 with an atomic mass of 137.9 amu and lanthanum-139 with an atomic mass of 138.9 amu
What is the solubility product constant for Ag3PO4 if 6.37 mg of Ag3PO4 can be dissolved in 850 mL of water?
Explain why dichloroethene has a boiling point of 60 degrees C while trans-dichloroethene as a boiling point of 48 degrees C. Include drawings of the structures with dipoles in your answer.
Determine the new temperature and express your answer in degrees celsius,?
Describe why this is based on the wavelength range that is transmitted. What color would you see if you mixed the two solutions with ?max = 520 and ?max = 610?
calculate the kg mix- ture from the mixer, kg water evaporated, and kg jam produced.
What is the percentage protonation of the solute and Calculate the pH of the solute in an aqueous solution of 0.611 M Aqueous solution of Ammonia
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