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Define a container of Volume 2.60L contains gas at 250 mm Hg pressure at 298K. An additional 0.063 mole of another gas is added. Explain what will the pressure become?
Two objects at different temperatures are placed in a perfectly insulated calorimeter. When the system reaches equilibrium, which of the following statements is true?
It was found that 19.31 mL of an HCl solution are needed to react completely with 322 mL of a LiOH solution that has a pH of 11.56. What is the molarity of the HCl solution?
Calculate the pH of a solution made by mixing 50.0 mL of 0.100 M NaCN with 11.82 mL of 0.438 M HClO4 . pKa for HCN = 9.21
Set of quantum numbers listed in the form: (n,l,ml, ms). for each set of quantum numbers, indentify the corresponding orbital (1s, 2s, 3s....etc) if not allowed say not allowed.
The compound isoeugenol is composed of 73.20%C, 7.38%H and 19.42%O. What is the empirical formula of isoeugonol
the standard free energy change for the reaction of nitrogen gas with hydrogen gas to produce ammonia is -32.9 kj.
How many milligrams of sodium ion are in 250 ml of a 3.6%(m/v) solution of sodium phosphate, Na3PO4
Write a balanced equation for the reaction between O2 and H2. ( I know its H2O but I want to make sure there is nothing left over from O2)
What is the acceleration due to gravity at a point 5 cm from the center of a centrifuge rotor spinning
An astrology-loving friend hypothesizes that people born in that week like horror movies more than other genres of movies. You decide to use the scientific method to test this hypothesis.
32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 49.1 g of 32P, how much 32P was present 7.00 days ago
How many moles of ammonium ions are released when 1.6 mol of ammonium phosphate, (NH4)3PO4, is dissolved in water?
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