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3 enclosed flasks with different volumes have 50 mL of H20 at the temperature of forty degree Celsius Volume of flask 1, flask 2, flask 3 is 500 mL, 100 mL, 250 mL respectively now determine which flask has the smallest amount of water vapour and which one has greater vapor pressure of H2O?
Rank the following hydrogen atom transitions in order of increasing energy of light produced ( from lowest energy light produced to highest energy light produced).
A 0.221 g pellet of potassium hydroxide,KOH, is added to 52.2 g water in a Styrofoam coffee cup. The water temperature rises from 23.5 to 24.4 °C.
A balloon is filled to a volume of 7.0 102 mL at a temperature of 12.0°C. The balloon is then cooled at constant pressure to a temperature of 1.00 multiplied by 102 K. What is the final volume of the balloon?
A kitchen pressure cooker operates at 1.50 atm. The Hvap of water is 40.7 kJ/mol. What is the boiling point of water in the pressure cooker
What mass of ammonium chloride should be added to 2.45L of a 0.145M NH3 in order to obtain a buffer with a pH of 9.45
Calculate the concentration of Ni2+ in a solution that was prepared by mixing 50.0 mL of 0.020 M Ni2+ with 50.0 mL of 0.0300 M EDTA. The mixture is buffered at a pH of 3.0.
What kinetic energy must the electrons have in order to resolve a protein molecule that is 4.60 nm in diameter. Take the mass of an electron to be 9.11× 10-31 kg.
3.20 Existing records reveal the following information about events A and B, where A = a long March warm spell and B = an April flood. Are variables A and B independent. Prove.
What is the maximum mass of CuS which can be formed when 38.0 mL of 0.500 M CuCl2 are mixed with 42.0 mL of 0.600 M (NH4)2S? Aqueous ammonium chloride is the other product.
How much heat (in kJ) is required to warm 16.0g of ice, initially at -11.0 C, to steam at 112.0 C? The heat capacity of ice is 2.09 J/g*C and that of steam is 2.01 J/g*C.
Write an equation for determining the average atomic mass number of an element that has two isotopes. Isotope 1 has a relative abundance of 33%, and isotope 2 has a relative abundance of 66%.
consider a reaction in which ferric oxide is converted to iron and gaseous oxygen. If this reaction is only 83% efficient and the ferric oxide is only 87.5% pure, what mass of ferric oxide is required to make 3 moles of iron
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