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A spoonful of sodium chloride is dissolved in a liter of water. What is sodium chloride in this solution?
1.464 g of an unknown hydrocarbon (112.6 g/mol) burns in bomb calorimeter in excess oxygen. The heat capacity of the calorimeter,Cv, = 5.234 kJ/ºC and ?T =5.744 ºC. Find ?E for this hydrocarbon in kJ/mol.
the following findings, express to the nearest atomic mass unit, in agreement with Dalton's atomic theory? expalin your answer.
Suppose that 1.08 g of rubbing alcohol (C3H8O) evaporates from a 75.0 g aluminum block.If the aluminum block is initially at 25 C, what is the final temperature of the block
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
What mass in grams of CO2 was evolved? The balanced equation I set up is: Na2CO3 + 2HClO4 --> NaClO4 + CO2 + H2O Now what? What was the molarity of the excess reactant (HCl or Na2CO3)?
Give a detailed mechanism for the nitration of bromobenzene . As part of your answer explain the regiospecificity
Identify the major type of interactive force of MgF2? how do you find the major type of interactive force?
A 126 piece of metal is heated to 285 and dropped into 83.0 of water at 26. If the final temperature of the water and metal is 58.3.
What is ?, the electromotive efficiency to three significant figures?? Open the hint panel below for the definition of electromotive efficiency. (d) What is the pH of an unknown that gives a reading of 19.6 mV with this electrode at 30°C?
A molecule in which centers of positive and negative charge do not coincide must be.
If you had 6.02 x 10^23 dollars, and could spend it at 1 billion per second for your entire life (75 years), what approximate percentage of your original money would you have left?
a retro calculation of the amount of Ni(Nh3)6Cl2 that is needed if 20mL of 0.10M HCl are used to neutralize ammonia. The number I got was 0.07727 g.
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