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Calculate the number of moles containing each of the following. Express your answer to three significant figures and include the appropriate units. A.) 1.42×1022 atoms of sodium, {\rm Na} . B.)3.23×1023 molecules of dinitrogen trioxide, {\rm N}_{2}{\rm O}_{3} C.) 7.59×1024 formula units of sodium nitrite, {\rm NaNO}_{2} .
According to Raoult's law, which statement is false?
What mass of NaOH could this buffer neutralize before the pH rises above 4?
Calculate the maximum [glucose]in/[glucose]out ratio that can be achieved by the plasma membrane Na+- Glucose antiporter of an epithelial cell when the concentration of Na+ inside the cell is 7mM
how many Liters of water can be made from 34 grams of oxygen gas and 6 grams of hydrogen gas at STP? what is the limiting reactant for this reaction?
Compare the amount of cooling experienced by an individual who drinks 400mL of water (0 degrees C) with the amount of cooling experienced by an individual who sweats out 400 mL of water at 37 degrees Celsius. Assume all sweat evaporates.
The density of water is 1.00 g/ml, the density of dichloromethane is 1.32 g/ml. If you mix dichloromethane and water together, which layer will be on top and which layer will be on the bottom
Fish produce glycerol to survive the freezing waters of the Arctic. Determine the degree to which the freezing point of blood and other biological fluids is lowered with the help of glycerol. What is the ideal concentration range of glycerol requi..
Molar mass from volumetric data, 2.64g of an organic base, isolated from a shrub in the mountains of Peru was dissolved in 100mL of water. 25.0mL of this solution required 27.5mL of 0.250mL HCL for complete neutralization
Sodium thisulfate, Na2S2O3, is used as a fixer when developing photographic film. What is the mass in grams of Na2S2O3 needed to make 100ml of a 0.25 solution?
A 12.0g- sample of a gas has a volume of 5.25g at 28 celcius and 757mmHg If 2.7g of the same gas is added to this constant 5.25L- volume and the temperature raised to 64 celsius, what is the new gas pressure?
For the elementary processes whose equations are given below, determine whether each is unimolecular or bimolecular and determine the rate law for each process. Pick the choice which is correct.
Under what circumstances with regards to degrees of no polar characters are frenkel and schottky defects likely?
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