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Calculate the heat released when 2.00L of Cl2(g) with a density of 1.88 g/L react with an excess of sodium metal as 25°C and 1 atm to form sodium chloride. [H°f(NaCl) = -411.0 kJ/mol
Total pressure in kPa 10 seconds after initiation of the reaction if initially there was 88.3kPa of pure N 2 O 5 vapor Enter the total pressure in kPa 10 minutes after initiation of the reaction.
what gas are evolved from the acidified solution of hydrolyzed albumin? write equationfor the reaction of the gas with lead II acetate?
The temperature of a 35.2 g sample of iron increases from 23.7 C to 29.5 C. If the specific heat of iron is 0.450 J/g-K, how many joules of heat are absorbed.
A star is 3.28 x 1014 km from Earth. How many days does it take for light to travel from the star to Earth?
A solution has a volume of 2.0 L and contains 36.0 g of glucose (C6H12O6). If the molar mass of glucose is 180 g/mol, what is the molarity of the solution.
The activation energy for the isomerization of methyl isonitrile (see figure below) is 160 kJ/mol. Calculate the fraction of methyl isonitrile molecules that has an energy of 160.0 kJ or greater at 499 K.
What volume of O2 gas (in L), measured at 782 mmHg and 25C is required to completely react with 53.2 g Al
Multiple choice questions in Nuclear chemistry - As the temperature of a sample of a radioactive element decreases, the half-life will
If a sample of barium contains 2.3 x 1023 atoms of barium, how many grams of barium are in the sample?
Suppose that 1.06 g of rubbing alcohol (C3H8O) evaporates from a 64.0-g aluminum block. If the aluminum block is initially at 38°C, what is the final temperature of the block
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.
A quantity of gas under a pressure of 1.78 atm has a volume of 550 cm square. the pressure is increased 2.50atm while the pressure remains constant what is the new volume.
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