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A zero-order reaction has a constant rate of 3.20×10-4 . If after 60.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration?
Determine how many grams of Ammonia are needed to produce 130 grams of hydrogen flouride?
Determine the pressure of a gas using the ideal gas law - Calculate the pressure inside the vessel after all the dry ice has been converted to CO2 gas.
A 370. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 49°C.
A mixture of gases containing 21.0 g of N2, 106.5 g of Cl2, and 12.0 g of He at 14 oC is in a 50.0 L container. What is the partial pressure of N2?
The reaction of barium metal with liquid water produces 660.2 kJ of heat for every mole of barium that reacts. One of the products is barium hydroxide.
2 Al(OH)3 + 3 H2SO4 → Al2(SO4)3 + 6 H2O. How many grams of Al2(SO4)3 are generated when 152 g of H2SO4 reacts.
Calculate the molarity of each of the following solutions. (a) 23.0 g of ethanol (C2H5OH) in 545 mL of solution (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution
The bonding in BF3 requires formation of hybrid orbitals on boron. If the molecule is oriented in the xy plane, what is the identity of the unfilled p orbital on boron.
A mixture consisting of 2.50×10!3 g of O2, 3.51×10!3 mol of N2, 4.67×1020 molecules of CO are placed in a vessel with a volume of 4.65 L at 15.4°C.
The stopcock between a 3.00 L bulb containing oxygen at 295 torr and 1.00 L bulb containing nitrogen at 530 torr is opened. What is the total pressure of the mixture.
A sample mixture of CH4 and C2H6 weighing 0.732 g burned to give 2.064 g CO2. What is the mass of CH4 in the mixture.
Determine how many grams of methane is required to form 43.0 grams of CHCl3?
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