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A 13.0g mixture of C and S, when burned in oxygen, yielded a mixture of CO2 and SO2 in which the number of moles of CO2 was one-half the number of moles of the SO2. How many grams of C contained in the mixture?
calculate the initial reaction rate when [O3] & [NO] remain essentially constant at the values [O3]0= 7.48 x 10-6 M & [NO]0= 3.26 x 10-5M, owing to continuous production from separate sources.
CH3OH(g)-> CO(g) + 2 H2(g) H = +90.7 kJ Calculate E when 335.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K
Draw a Lewis Structure for C3O2. Draw a Lewis Structure for C2H3NO5
A pound of coffee beans yields 70 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 1.0 g of coffee beans.
consider the reaction in which 410g of Ca(NO3)2 react with just the right amount of magnesium metal in a single replacement reaction. how many grams of lithium are required?
Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq)
Assume that a particular reaction evolves 250 kj of heat and that 34 kj of PV work is gained by the system. What is the enthalpy?
you add 1.65L of water to 112g of sodium acetate. what is the molarity of the sodium acetate in the solution
Suppose that 266 mL of argon is collected over water at 25 ? C and 786 torr. Compute the volume of the dry argon at STP. The water partial pressure at 25 ? C is 23.8 torr. Answer in units of mL.
Which of these is true about the following reaction?
A sample of 0.600 mol of a metal M reacts completely with excess fluorine to form 46.8 g of MF2. (a) How many moles of F are in the sample of MF2 that forms? M + F2 (b) How many grams of M are in this sample of MF2?
3.5 g of a hydrocarbon fuel is burned in a vessel that contains 250. grams of water initially at 25.00 C. After the combustion, the temperature of the water is 26.55 C. How much heat is evolved per gram of fuel burned?
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