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A sample of neon has a volume of 270 mL when it is at a pressure of 831 mmHg. What will be the volume when the pressure is increased to 1238 mmHg?
The atomic weight of a newly discovered el- ement is 98.225 amu. It has two naturally occuring isotopes. One isotope has a mass of 96.780 amu. The second isotope has a per- cent abundance of 41.7%. What is the mass of the second isotope?
Determine the mass of 28.56 mL of acetone and express your answer in grams? also find out the volume, of 6.54 g of acetone and express your answer , in mL?
Kn1 knowledge and understanding of atomic and molecular structure, chemical bonding, chemical formulas, chemical equations, mole calculations and the mole concept and the relation between elements of the Periodic Table.
Find the mass of the sugar (C6H12O6) required to produce 1.82 L of carbon dioxide gas at STP from the reaction?
Evaluate the electronic configuration for ionization energies of Magnesium, the orbital number in which the electrons are added in phosphorus ion, and the one will lose in the ionization of Alluminium.
Determine how many moles of each Na+ and Cl- are in 1.00L of the saline solution?
A compound with empirical formula C 2 H 2 N dissolved its 0.0800 gram in 10.00 g of C 6 H 6 , freezing point of resulting solution= 4.99 degree celsius
a gas has a volume of 1.75 L at -23 degrees Celsius and 150 kPa at what temperature will the gas occupy 1.30 L at 210 kPa
Calculate the total volume of gas (at 133 degrees C and 758 mmHg) produced by the complete decomposition of 1.56 kg of ammonium nitrate.
What is the percent by mass of oxygen in a gaseous mixture whose molar composition is 0.500% CO2 and 99.500% air? The composition of air is 21% mole O2
determine volume it would have if it reaches an altitude where the temperature = -33 0C , pressure = 0.65 atm?
Bismuth oxide reacts with carbon to form bismuth metal: Bi2O3(s) + 3C(s) --> 2Bi(s) + 3CO(g)
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