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What is the O-N-O bond angle in NO3- (a) less than 109.5degree (b) 109.5 degree (c) 120 degree (d) greater than 120 degree
A balloon filled with 39.1 mol of He gas has a volume of 875 L at 0.0 degrees Celsius and 1.00 atm. The temperature is increased to 38.0 degrees Celsius as the balloon expands to 998 L at constant pressure. Calculate delta E for the He sample. C H..
Assuming that the addition of the acid does not change the volume of the solution what is the pH of the acid/water mixture in the flask?
How many moles of sulfate ions (SO2-/4) are present in 1.6 moles Al2(SO4)3
How many grams of manganese may be formed by the passage of 32,349 C through an electrolytic cell that contains an aqueous
What is the purpose of putting anti-freeze in your car radiator? (Anti-freeze is usually Ethylene glycol)
Calculate the molality of a sucrose (C12H22O11) solution containing 14.3 g of sucrose in 676 g of water.
What is the enthalpy change corresponding to the melting of 2.5 moles of H2O? What is the system? What is the surrounding?
In the Haber-Bosch Process, nitrogen and hydrogen gas are reaceted under high temperature (500 C) and pressure (200 atm) to form ammonia gas (NH3) according to the equation
in the olympics and other major athletic competitions a gc-ms is used to screen athletes for their use of banned
determine the mass of agno3 mw 170gmol required to dissolve in 400 ml solution in order to prepare a solution which is
Determine the amount of energy or work that the silicon nitride tip could absorb before being plastically deformed, assuming no initial cracks. Volume is in part A.
what mass of sucrose should be combined with 514 g of water to make a solution with an osmotic pressure of 8.85 atm at
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