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Which is the limiting reagent when 9 Ca atoms and 8 H3PO4 molecules react and produce 3 molecules of Ca3(PO4)2 and 9 molecules of H2? Write a balanced chemical equation.
a. H2
b. H3PO4
c. Ca
d. Ca3(PO4)2
e. None of these.
A sample containing 1.5 moles of neon gas has a volume of 8.00 L. What is the new volume of the gas in liters when the following changes occur in the quantity of the gas at constant pressure and temperature.
When 20 mL of a 135 mL stock solution containing 1.5 M CaCl2 is diluted to 103 mL, how many moles of Ca2+ are in the new solution?
Proceeds at a certain temperature until the partial pressures of H2O, H2, and O2 reach 0.0800 atm, 0.00500 atm, and 0.00200 atm respectively.
A 10.1 g sample of CaCl2 is dissolved in 119 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C·..
what pressure would it exert? (b) What pressure would it exert if it behaved as a van der Waals gas?
Sodium carbonate Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 4.03×103 kg of sulfuric acid solution?
consider an excited-state hydrogen atom. What is the energy of the electron in the n = 3 level? ground state energy
what is the concentration of a nitric acid solution if a 10.00ml sample of the acid reqires 31.25ml of 0.135m koh for neutralization.
If 488 g SO2 escaped into the atmosphere and all the escaped SO2 were converted to H2SO4. How many grams of H2SO4 would be produced in the atmosphere?
How many hours will it take to produce 78.0 g of Al metal by the reduction of Al3+ in an electrolytic cell with a current of 2.00 Amperes?
A buffer solution is prepared by dissolving 1.50g each of benzioc acid C6H5CO2H and sodium benzoate NaC6H5CO2 in 150.0mL of solution.
If 28.9 grams of trans-2-butene reacts with 14.2 grams of HCl to form 15.5 grams of chlorobutane, what is the percent yield?
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