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A 303- sample of unknown solution reacts completely with to form 14.1 . What was the concentration of the solution?
How much heat is needed to vaporize 3.63 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
Calculate q,w,delta U and Delta H for each segment and for the cycle in which the direction of each process is reversed. In the graph all it says is the P initial =16.6 bar and Vinitial=1.00L and P final=16.6 bar and V final =25L
A solution is made by mixing 50.0 ml of a HCl (aq) solution which has a pH of 3.00 with 50.0 ml of a KOH solution which has a pH of 12.00.
Will the temperature of the water be greater than or less than 20 C when thermal equilibrium is reached? Calculate the final temperature
Determine the empirical formula and the molecular formula of the organic compound. empirical and molecular formula
The Cl^- concentration in the water analysis given has been questioned. What concentration of Cl^- (mg/L) would make the cations and anions balance?
What is the percent yield of a reaction in which 200 g phosphorus trichloride reacts with excess water to form 82 g HCl and aqueous phosphorus acid (H3PO3)
Calculate the mass of methane that must be burned to provide enough heat to convert 151.0 g of water at 43.0°C into steam at 124.0°C.
51.1 g of a substance X dissolves in enough water to make 0.754 L of a 0.579 M solution. Calculate the molar mass of X in g/mol
A reaction mixture initially contains a Br2 partial pressure of 755 torr and a Cl2 partial pressure of 725 torr at 150 K. Calculate the equilibrium partial pressure of BrCl.
Suppose that microwave radiation has a wavelength of 11.2cm. How many protons are required to heat 245mL of Coffee from 25.0 C to 62.0C? Assume that the coffee has the same density,
Constant external pressure of3.00 atm, followed by2) against a constant external pressure of 2.00 atm. Calculate q and w. (101.33 J = 1 L atm)
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