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Question - How many milliliters of ethanol are present if a sample contains 5.60 *10100molecules at 20 oC?
Here is the question which I am struggling on, please help me!
An electric power station annually burns 3.3 107 kg of coal containing 2.4 percent sulfur by mass. Calculate the volume of SO2 emitted at STP.
A complex ion, [ML6]2+, is green in solution. assume if the same metal forms a complex with another ligand, Q, that creates a stronger crystal field. What color(s) could [MQ6]2+ be
calculate the temperature of an isothermal flash drum required to vaporize 40% of a liquid mixture of 60mol% isopropanol and 40mol% n-butanol
Give the symbol of the element in the fifth period of the periodic table with five valence electrons, Give the symbol of the element in the fourth period of the periodic table with four 4p electrons
A hydrate of calcium sulfate CaSO4.XH2O contains 20% water. calculate the ater of crystallization (X), and write the formula of the hydrate
How many grams of no2 will be produced when 5.00 moles of NO react?
for an alloy that consists of 90 at zn and 10 at cu what are the concentrations a of zn in weight percent and b of cu
Beta-carotene is organge. This means it absorbs blue lgiht. It has conjguated systme which allows the pi-electrons to delocalize over teh length of the molecule.
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.
The boiling point of methanol is 65.0C as well as the standard enthalpy of formation of methanol vapor is -201.2 kj/mol. How would you compute their vapor pressure of methanol (in mmhg) at 25C
The half life of polonium-210 is 138.4 days. How many milligrams of polonium-210 remain after 415.2 days if you start with 2.0 mg of the isotope?
What is the total pressure exerted by a mixture of 1.50 g H2 and 5.00 g N2 in a 5.00 L vessel at 25 ºC
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