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THE FLAME TEST LAB: Did the observation support the Balmer Series theory of visible light spectral emissions being different for elements with different #'s of electrons?
Gaseous oxygen is held in two separate containers at identical temperature and pressure. The volume of container A is 6.48 L and it contains 0.785 mol of the gas. The volume of container B id 5.78 L. How many moles of the gas are in container B
a mole of atoms ions molecules or anything else contains avogadros number 6.022 x 1023 of these units. a mole of
What is the pH of a buffer prepared by adding 180 mL of 0.100 M NaOH to 200 mL of 0.100 M acetic acid? (Ka for CH3COOH = 1.8 x 10-5)
how much heat does your body lose when 2.5 grams of sweat evaporates from your skin at the temperature of 298k? assume
What is the deltaH in kJ/mol of CaCl2 dissolved
What products would you obtain from reaction of 1-methylcyclohexanol with the following reagents - what products would you obtain from reaction of butan-1-ol with the following reagents
Question- A beaker with 195mL of an acetic acid buffer with a pH of 5.000 is sitting on a bench top. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.60mL of a 0.320M HCl solution to the beaker. How much wi..
A light green liquid, and informed that someone accidentally spilled a few small flecks of an intensely green-colored crystalline dye in a rather expensive solvent, so it doesn't make sense to throw away the very slightly contaminated solvent.
N2H4+3O2----2NO2+2H2O The limiting reagent is O2 how many kg of NO2 are produced from the reaction of 75kg of the limiting reagent.
Xenon gas is released during a certain chemical reaction and pushes back the atmosphere with a change in volume of the vessel (it has a movable piston) from 2 to 20 Liters. Calculate the work done by this release of gas.
A sample of iron was dissolved iin hydrochloric acid. The liberated hydrogen was collected by displacement of water. The hydrogen occupied 262 mL at 26 c.
Problem- Calculate the e.e. and the specific rotation of a mixture containing 6 g of (+)-butan-2-ol and 4 g of (-)-butan-2-ol. The rotation of the (+) pure enantiomer is +13.5 degrees).
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