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What are the importance of electrons in chemistry? What do electrons have to do with chemistry, and why are they important? Do electrons alone explain chemistry? Give some examples and explanation of the concept.
What is delta Suniv for the condensation of a mole of water at 80c if S (standard) of liquid water at 100 c is 87J/mol K and if S (standard) of water vapor at 100C is 197 J/mol K
Question- An open tubular column with a diameter of 207?m and a stationary phase thickness on the inner wall of 0.64 ?m passes unretained solute through in 77 s. A particular solute has a retention time of 431 s.
A gas weighing 33.62 g occupies a 10.00 liter flask at 27oc and 730 torr of pressure. what is the molar mass of the gas?
Explain a gaseous fuel mixture stored at 747 mmHg as well as 298 K contains only methane and propane. While 11.3 L of this fuel mixture is burned, it produces 766 kJ of heat.
total ion concentration what conductivity should be observed for 0.050 M Na2SO4?
element x a member of group 5a forms two chlorides xcl3 and xcl5. reaction of an excess of cl2 with 8.729g of xcl3
Suppose that 0.2553 moles of KMnO4 were required to exactly titrate the Fe2+ in a sample. How many moles of Fe2+ were in the sample?
The temperature in the room was 25.0 ºC. James was asked to transfer 4.50 mL of a liquid (density = 0.895 g/mL at 25.0 ºC) using a buret. He added the liquid into a 50-mL beaker weighing 25.789 g. He weighed the beaker with the liquid and found th..
A solution containing 8.3 g of a nonvolatile nondissociating substance dissolved in 119.5 g of chloroform, CHCl3, and the solution has a vapor pressure of 511 torr. The vapor pressure of pure chloroform is 526 torr. Calculate the molar mass of the..
What is the concentration of the chloride ion (in M) in a solution which contains 57.6 g aluminum chloride in 501 mL of solution
Consider the reaction of aluminum hydroxide with hydrochloric acid. This is a neutralization reaction. For every mol of aluminum hydroxide, how many mols of water are created from this reaction
The density of the manometer fluid is 2.75 g/cm3. The height of the manometer fluid on side 1 is 324 mm. The height of the manometer fluid on side 2 is 326 mm
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