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A chunk of dry ice, CO2(s), weighing 6.9 g is sealed inside a 2 L soda bottle initially containing 1 bar of air. Explain what is the total pressure in the bottle after the dry ice sublimes as well as comes to 298.15 K?
When 7 mL of a solution containing 2.5 M AlBr3 is diluted to 30 mL, a dilute solution is formed. What is the Br- concentration in 15 mL of the dilute solution?
Compute the molarity of the hydroxide ions (OH- )in a solution that has been made by adding 70.3 grams of barium hydroxide (Ba(OH)2) in H2O(water) and diluting the solution to a final volume of four litres.
an unknown molecule contains only iodine and fluorine and it is 57.2 i by mass. what is the electron domain geometry of
The diameter of a rubidium atom is 4.95A . We will consider two different ways of placing the atoms on a surface. In arrangement (a), all the atoms are lined up with one another.
The empirical formula is NO2. If the molar mass is 92g/mol give the molecular formula.
An aqueous solution contains metal cations from qualitative analysis from group 1, 2, 3, 4, and 5. While adding H2S in NH3/NH4Cl buffer will cause metal cations from group(S) ............. to precipitate.
A sample of cerium-141 for a diagnostic test was dissolved in saline solution to an activity of 4.5 millicuries/mL. If the patient undergoing the test needs a dose of 10 millicuries
When temperature and pressure confitions are not too severe, equations of state me be integrated explicitly to determine the fugacity of a gas. Derive an expression for ln(f/p) for a van der Waal's gas.
One of the steps in the commercial process for converting ammonia to nitric acid is the conversion of NH_3 to NO: 4NH_3 + 5O_2 yields 4NO +6H_2O In a certain experiment, 2.05g of NH_3 reacts with 3.76g of O_2 How many grams of NO and of H_2O will ..
Charcoal is primarily carbon. Determine the mass of CO2 produced by burning enough carbon to produce 5.00 x 102 kJ of heat. C(s) + O2(g) = CO2(g) DH = -393.5 kJ
decomposition of kclo3 is sometimes used to prepare small amounts of o2 in the laboratory 2kclo3s 2 kcls 3
lauryl alcohol is obtained from coconut oil and is used to make detergents. a solution of 5.00 g of lauryl alcohol in
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