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Explain the volume of a gas is 6.10 L measured at 1.00 atm. Define what is the pressure of the gas in mmHg if the volume is changed to 9.59 L. The temperature remains constant.
Compute the remaining concentrations of all four ions: Potassium, Lead (II), Chromate, and Nitrate D. Compute the mass of solid produced by mixing these chemicals
what volume of ethylene glycol, a nonelectrolyte, must be added to 15.0 Liters of water to produce an antifreeze solution with a freezing point of - 30 degrees celcius? what is the boiling point of the solution?
A 2.914-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 Celsius in a crucible until a constant mass is reached.
Write a balanced chemical equation when Magnesium metal burns in oxygen to form magnesium oxide, MgO
At room temperature a beaker of liquid measures 26 degree C. What is its temperature measured in Kelvin?
A gaseous mixture consisting of 0.513 grams of H2 and 16.1 grams of N2 occupies 10.0 liters at 20.0 degrees C. Calculate the partial pressure of H2 and N2 in the mixture in units of atmosphere.
a. exchanges energy when a phosphate bond is hydrolyzed b. the high energy form of coenzyme A c. the oxidized form of nicotinamide adenine dinucleotide.
prepare 3.9L of a HCN/NaCN buffer that has a pH of 9.70 and an osmotic pressure of 1.27atm at 298K. What masses of HCN and NaCN should you use to prepare the buffer
You are asked to prepare 1.6 L of a HCN/NaCN buffer that has a pH of 9.88 and an osmotic pressure of 1.73 atm at 298 K. What masses of HCN and NaCN should you use to prepare the buffer? (Assume complete dissociation of NaCN.)
Draw orbital-filling diagrams for atoms with the following atomic numbers. Show each electron as an up or down arrow, and use the abbreviation of the preceding noble gas to represent inner-shell electrons
What net ionic equations for the precipitation reaction or reactions that occur. What are the spectator ions in the solution
what particle or type of radiation needs to be included to balance the equation? 234Th ? ? + beta particle? Please explain why you chose your particular answer
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