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Why do you think a distillation tower can separate oil into different fractions, while we can't separate seawater into its various fractions in the same way?
What is the mass in grams of 2.75 moles of CH4, How many moles are in 365 grams of K2SO4.
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3OC(CH2OCH3)3. Drag the appropriate splitting patterns to the approximate chemical shift positions;
If 3.25ml of vinegar needs 40.0 of 0.130M NaOh to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.30qt sample of this vinegar.
What are the advantages and disadvantages of writing a chemical equation with chemical symbols and formulas instead of just words?
What is the maximum height, neglecting all forms of friction, to which a car of mass 1000 kg can be driven on 1.00 gallon of fuel given that the engine cylinder temperature is 2000 C and the exit temperature is 800 C?
Calcium fluoride is added to water until the solution is saturated. The calcium ion concentration in the saturated solution is 2.1 x 10-4 M. Compute the equilibrium constant for the dissolution of calcium fluoride.
An alpha particle (mass = 6.6 multiplied by 10-24 g) emitted by radium travels at 3.2 multiplied by 107 ± 0.1 multiplied by 107 mi/h. What is its de Broglie wavelength (in meters)
Suppose at some temperature, Kc= 6.20 X 10^8 for the reaction 2NO(g) + 2H2(g) N2 (g) + 2H2O(g). 5.00 M NO(g) and 5.00 M H2 (g) are placed in a reaction flask. Calculate the equilibrium concentration of H2 (g)
If the heat of fusion os X is 80.0 J/g, the heat of vaporization is 190.J/g, and if 3.5 J are required to warm 1 g of X each degree, how much energy will be needed to accomplish the change in a
Find the equation for work of a reversible isothermal compression of 1mol of a gas in a piston cylinder assembly if the molar volume of the gas is given by V = [(RT)/P] + b; where R and b are positive constants.
You are in charge of an ERP systems design project and tasked with fact-finding. The project schedule allows enough time for you to use two fact-finding techniques. Identify two techniques you would use and state the advantages and disadvantages o..
The combustion of 135mg of a hydrocarbon produces 440mg of CO2 and 135mg of of H2O. The molar mass of the hydrocarbon is 270 g/mol. Determine the molecular formula of this compound ?
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