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Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of Phosphorus-32 , how many grams will remain after 98.0 days?
process it is given that Rubidium has a heat of vaporization =69.0 kJ/mol at its boiling pt= (686°C). Compute ΔS for this process?
A mixture of CO2 and N2 gases has an experiment density of 21922 mol/m3 at T=225K and Pressure= 68.759 MPa and Z=1.67661. What is density of this mixture of gases in mol/m3 by Peng-Robinson equation of state? (Mole fraction of Co2= 10.56%)
Determine how much energy will be required to heat 69.7 gal of H 2 O from 22 degree Celsius to 110 degree Celsius if it is given that 1.00 gal weighs 3.77 kg and water has a specific heat capacity =4.184 J/g C
What volume of 4.7 M NaOH is required to react completely with 1.7 mL of a 1.51 M HCl solution?
Identify the following systems as open, closed, or isolated. i) Coolant in a refrigerator coil ii) The combustion of liquid hexane in a bomb calorimeter
What volume of H2 could be produced at a temperature of 19 oC and a pressure of 764 torr by the reaction of 2.98 g of aluminum with hydrochloric acid.
The half-life of 137Ce is 30. years. If we have 150.000 g of 137Ce now, how many grams of Ce will remain in 150. years?
What volume will carbon dioxide originally 30.0 mL at 27°C have at 77°C
Calculate the pH of a solution made by adding 77 g of sodium acetate, NaCH3COO, to 24 g of acetic acid, CH3COOH, and dissolving in water to make 700. mL of solution.
It takes 78.2 J of energy to raise the temperature of 45.6 g of lead by 13.3 oC. What is the specific heat capacity of Pb? What is the molar heat capacity of Pb.
How many moles of phosphine (PH3) are produced for every 4.0 moles of hydrogen that react according to the chemical equation below?.
The complete combustion of acetylene, C2H2(g), produces 1300. kJ of energy per mole of acetylene consumed. How many grams of acetylene must be burned
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