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At equilibrium a 2L vessel contains .410 mol of H2, .130mol of Br2, and 36.0 mol of HBr. What is the equilibrium constant for the reaction at this temperature?
How many calories are required to warm 15.0 g of water from 75 C to 100.0 C and convert it to steam at 100.0 C? The heat of vaporization of water is 540 cal/g.
If 2.45 g of N2H4 reacts and produces 0.650 L of N2, at 295 K and 1.00 atm, what is the percent yield of the reaction?
In the reaction BaCO3 + 2HNO3 -> Ba(NO3)2 +CO2 + H2O, what mass of Ba(NO3)2 can be formed by combining 55 g BaCO3 and 26 g HNO3?
What must be the atomic mass of the metal M If A sample of the compound MSO 4 weighing 0.1131 g reacts with barium chloride and yields 0.2193 g BaSO4.?
Write down the Empirical Formula if aA Compound Is 21.20% nitrogen, 6.06% Hydrogen, 24.30% sulfur , And 48.45% Oxygen?
If vitamin A is 83.86% Carbon and 10.56% Hydrogen by mass then determine the the molecular formula this vitamin A.?
An electron traveling at the velocity of 3.7 105 m/sec has an uncertainty in its velocity of 2.34 105 m/s. determine the uncertainty in its position?
How many grams of cholesterol are in 230 mL of blood? The concentration of cholesterol (C_27H_46O) in blood is approximately 5.0mM.
An unknown metal X with a mass of 28 grams absorbs 58 J of heat. calculate the heat capacity if Its temperature raises from 31.1 °C to 39.9 °C.
P4(s) + F2(g)-> PF3(g) What mass of F2 is needed to produce 187 g of PF3 if the reaction has a 80.1% yield?
You need to produce a buffer solution that has a pH of 5.10. You already have a solution that contains 10 mmol (millimoles) of acetic acid.
How many gms of H2O must be combined to 519.5 gms of methanol at 20°C to have an osmotic pressure of 408 mm of Hg? Methanol density = 0.8921 g/mL.
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