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Determine how many atoms there are in 1 gallon using your knowledge of mole calculations and unit conversions. Assume that the molecular formula for gasoline = C6H14 ,the density of gasoline =0.85 grams/mL
Determine the molar concentration of chloride ions after adding 225 ml of 0.625 MKCL with 615 ml of 0.385M MgCl2 if final volume of the solution is 840ml.
Questions on chemical equations - Write a balanced equation for this reaction. Include the states of matter for each compound.
While 1.22 g of a white solid, supposed of being pure cocaine, a molecular compound, is dissolved in 15.60 g of C6H6 the freezing point is lowered by 1.32 ¬0C. Compute the molar mass of the solid. Kf value for benzene = 5.12C/m.
Find the new volume of the gas sample - What is the new volume of the gas sample
Write the structures of the saytzeff elimination
Compute the molarity of a solution prepared by dissolving 15.2 grams of CaCl2 in H2O with a solution volume equal to 5.00 x 10² millimeters.
Designing and preparing aqueous buffer solution with the pH indicated.
In which compound does sulfur have the highest oxidation number a)Na2S2O3 b)NaHS c)H2S d)KHSO3 e) CuSO4
Why does the absolute refractory period occur and What is happening in the cell.
Calculate how many grams of phosphorus are present in 2.68 moles of phosphorus pentachloride(PCl5) and also determine the numbers of moles of chlorine are present in 3.71 grams of phosphorus pentachloride?
Find out the required pressure to compress 180 liters of N at 1.0 atm into a tank whose volume is 34 liters.
By Solving this problem student understand about isotopic abundance and how to calculate atomic weight (average atomic mass) of an element -
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