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The molar heat of vaporization for liquid water is 40.6 kJ/mole. How much energy is required to change 1.6 g of liquid water to steam if the water is already at 100oC?
Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 272.00 pm.
How much heat is liberated at constant pressure when 2.35 g of potassium metal reacts with 5.68 mL of liquid iodine monochloride
Explain why do chefs use zinc and copper cookware to preserve the green color in vegetables. Explain how does zinc and copper keep the chlorophyll compounds from oxidizing
A compound made of elements from group 2A ("M" below) and group 6A ("X" below) of the periodic table would be expected to have a formula
Determine the molar mass of chloroform gas if a sample weighing .389 grams is collected in a flask with a volume of 102cm cubed at 97 degrees Celsius. The pressure of the chloroform is 728 mmHg.
When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2Al(s)+6HCl(aq) yeilds 2AlCl3(aq)+3H2(g). what mass of Al(s) if required to produce 725.5 mL of H2(g) at STP
gas stoichiometry.ethanol c2h5oh burns in air c2h5oh i o2g ----gt co2g h2o i balance the equation and determine
Life is dependent on four major classes of biomolecules. What are they. Why are they important
The best design for rockets is one in which both fuel materials run out at the same time to minimize excess mass. If the total mass of both components in a decaborane/oxygen rocket must be 3.011E+6g, what mass of liquid oxygen should be used
predict the vernier angle based on the following best-fit line equation: y = 0.0126x + 25.68? y is for vernier angle and x is for wavelength in nm. Estimate to the nearest whole number.
a 0.0100 l sample of h2so4 sulfuric acid was titrated with 0.150 m naoh. it took 23.3 ml of naoh from the buret --
A certain automobile of mass 1635 kg travels on a German autobahn at 157 km·h-1. What is the wavelength of the automobile?
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