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how do you find the mass of one mole of spilt pea using the mass of .069 nd Avoadro's number (6.02x1023rd).
A sample of Oxygen is collected in a 206 mL container over water at 15C, and the barometer reads 793 torr. What volume would the dry gas occupy at 704 torr and 15C? Water's partial pressure at 15C is 12.8 torr. Answer in units of mL.
Calculate the hydrogen-ion concentration [H+] for the aqueous solution in which [OH-] is 1 x 10-11 mol/L. Is this solution acididc, basic, or neutral?
How many moles of methane (CH4) gas are in 745 mL at 25.5C and 730 torr?
A gas contains 17% O2, 11% CO2 and 72%N2. It is at 1.013 *105 Pa pressure. Calculate the partial pressure of each component
diamond crystallizes in a cubis cell with a+0.35670 nm and Z=8. Using 3.51 g/cm cubed as the density of diamond calculate te value of avagadro's number.
How much heat is given off when 11.0 grams of manganese is converted to Mn2O3(s) at standard state conditions? Hf of Mn2O3(s) is -962.3 kJ/mol.
3.00×10-3 mol of HBr is dissolved in water to make 17.0 L of solution. What is the concentration of hydroxide ions, OH-, in this solution?
How many liters of N2 (at STP) form when 1.0 kg of N2H4 react with 1.0 kg of O2?
Boyle's apprentice observes that the air trapped in air tube occupies 24.8 cm3 at 1.12 atm.by adding mercury to the tube increases the pressure on the trapped air to 2.64atm. assuming constant temperature, determine the new volume of air?
If 3.00 moles of ZnS are combined with 4.00 moles of O2 how many moles of ZnO can be produced and how many moles of the excess reactant will be left over?
5L of CO2 at 500 torr and 3L of CH4 at 400 torr are put into a 10L container. what is the pressure exerted by the gasses in the container.
A sample of nitrogen gas, N2 is collecyed in a 100 mL container at a pressure of 688 mm Hg and a temperature of 565 degress celsius. How many grams of nitrogen gas are present in this sample.
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