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Physical Chemistry
2.11g of sodium carbonate weredissolve in 250cm cube of solution.2cm cube of the soultion neutralises 20cm cube of hydrochloric acid .Calculate the molarity of the acid in
-mol/dm cube
-g/dm cube.
-mol/dm cube
-g/dm cube.
Physical Chemistry
How much of a 20 gram sample of Rn-222 will remain after 8 days?
Physical Chemistry
caculate the density of a piece of bone with a mass of 8.8 grams and a volume of 2.0cm cube
Physical Chemistry
Use the 5-step method and be sure to include units where appropriate. Round your answers to the correct number of significant digits.
Adjust the density formula and solve the problems below:
The density of silver is 110.49 g/cm3. If a sample of pure silver has a volume of 112.993 cm3, what would the mass?
Adjust the density formula and solve the problems below:
The density of silver is 110.49 g/cm3. If a sample of pure silver has a volume of 112.993 cm3, what would the mass?
Physical Chemistry
why v(ideal) = v - nb ?
Physical Chemistry
Explain why water in a glass cup is quickly warmed in a microwave oven, but the glass cup warms much more slowly, if at all.?
Physical Chemistry
A 800mL container holds 2.366g of an unknown gas at 78.0 degrees Celsius and 103kPa. Identify the gas.
Physical Chemistry
When calculating the wavelength range of a wave using this formula: Speed of light= Wavelength x Frequency. I don't understand how to calculate this: (2.998 x 10^8)/(3 x10^14). Help please?
Physical Chemistry
the heat required to raise the temperature of a large cup of water from room temperature to boiling is approximately 100 kJ. Express this quantity of heat in kilocalories and british thermal units.
Physical Chemistry
Find the number of disintegrations per hour emitted by 1.0 mol of 232Th in 1 minute
