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Methane and oxygen react to form carbon dioxide and water. Explain what mass of water is formed if 3.2g of methane reacts with 12.8 g of oxygen to produce 8.8 g of carbon dioxide?a. 7.2 gb. 8.8 gc. 14.8 gd. 16.0 g
A gas sample containing 1.65 mol at 25°C exerts a pressure of 413 torr. Some gas is added to the same container, and the temperature is increased to 50.°C.
the minimum energy required to cause the photo electric effect in potassium metal is 3.69*10^-19 J. will photoelectrons be produced when light shines on the surface of potassium?if 400 nm radiation is shone on potassium,what is the velocity of the..
what is the molar concentration of a h3po3 solution if 150.00 ml of the solution was required to neutralize 75.00 ml of
Calculate the equilibrium concentration of Zn2+(aq) in a solution that is 0.0125 M Zn(NO3)2 and 0.600
question calculate the energy in the form of heat in kj required to change 75.0 g of liquid water at 27.0 c to ice at
A system expands in volume from 2.0 L to 24.5 L at constant temperature. Calculate the work (w) if the expansion occurs against a constant pressure of 5.00 atm.
A gas weighing 33.62 g occupies a 10.00 liter flask at 27oc and 730 torr of pressure. what is the molar mass of the gas?
How much heat is absorbed in the formation of 1.69 mol of NO? Answer units KJ
Write the molecular and net ionic equations for the reaction in aqueous solution of sodium sulfide and sulfuric acid. Explain why the reaction goes to completion.
If a helium atom absorbs a photon with a wavelength of 58.44 nm, one electron will be promoted from the 1s orbital to a 2p orbital. Find the energy, in J, gained by a helium atom undergoing this transition.
Calculate the final Celsius temperature of sulfur dioxide if 0.500 L of the gas at 35°C and 650 mmHg is heated until the pressure reaches
Describe how to prepare a 500.00mL of a pH 10.00, 1.00M carbonate buffer using the following reagents- NaHCO3 (FM 84.007 g/mol), 6.0M HCl and 6.0M NaOH (H2CO3 Ka1 = 4.46x10 -7. Ka2 = 4.69x10 -11)
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