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What volume will a sample of hydrogen occupy at 28.0 degrees celsius if the gas occupies a volume of 22.3 dm3 at a temperature of 0.0 degrees Celsius? assume that the pressure remains constant
two mwthods were described for determining the volume of the flask used for the molar mass determination.
A gaseous fuel mixture stored at 745mmHg and 298 K contains only methane CH4 and propane C3H8. When 11.5L of this fuel mixture is burned, it produces 774kJ of heat. What is the mole fraction of methane in the mixture
4nh3 5o2 yields 4no 6h2ogiven 1.50g of nh3 reacts with 2.75g of o2 which is the limiting reactant? how many grams of
How many moles of H3O+ must be added to one liter of a solution to adjust the pH from 7.90 to 6.16? Use E notation and 3 significant figures.
The reaction 2NO(g) + Cl2 (g) --> 2NOCl(g) is carried out in a closed vessel. If the partial pressure of {NO} is decreasing at the rate of 27 torr/min, what is the rate of change of the total pressure of the vessel?
The reactant concentration in a zero-order reaction was 7.00×10-2 after 105 and 1.50×10-2 after 350 . What is the rate constant for this reaction.
calculate the escape velocity the minimum initial velocity that will take an object to infinity from the surface of a
the equivalence point occured at 4.67 mL of HCl. Calculate the pH at 0.00 mL of added HCl and at 2.00 mL of added HCL
a solid block of exactky 100.0 cm 3 has a mass of 153.6g. determine its density. will the block sink or float on
What is the maximum volume (at STP) of butene gas that could be obtained from the reaction of 1-bromobutane with KOH if all of the 1-bromobutane is converted to butene
For 220.0 mL of a buffer solution that is 0.205 M HCHO2 and 0.295 M KCHO2, calculate the initial and the final pH after adding 0.010 mol of NaOH.
how many moles of no2 gas can be produced from 45.5 g of o2 gas in the following reaction? show your work in the answer
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