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Oleum or fuming sulfuric acid available commercially in concentraytions ranging from 20-99% sulfur trioxide. A. What is the percent by mass of sulfur trioxide (SO3) if oleum is expressed as 3H2SO4 5SO3? Show your solution. B. List at least three potentially hazardous features associated with concentrated sulfuric acid.
how to calculate ksp of Ca(OH)2 at 296.25K and 364.95K with Ca(OH)2 being titrated with 0.0523M of HCl and 7.80mL of it added at 296.25K
If 100 mL of a solution containing 0.001 g of a compound with a molecular weight of 150 has a measured absorbance in a 1-cm cell of 2.0, what is the compound's molar extinction coefficient?
write the complete mechanism for the initiation and propagation steps using free radical notation for free radical notation mono-chlorination reaction of the alkane: 2, 4 - dimethylpentane.
Describe and explain the possible effect on your results of the following experimental errors or variations. In each case specify the component(s) whose percentage(s) would be too high or too low.
We have to measure the volume of O2 gas produced from the mixture of H2O2 and bleach (NaOCl). Based on the moles of reactants used and the volume of oxygen gas, how do determine the stoichiometry of the chemical equation?
What is the chemical formula of a homonuclear diatomic gas if it has a pressure of 1.40 atm and a density of 1.82 g/L at 27 ºC?
when 2.74 g of Ba(s) reacts with O2(g) at 298 K and 1 atm to form BaO(s), 11,100 J of heat is released. what is the delta H of formation for BaO(s) in kJ/mol?
It decomposes into its elements. Write the balanced equation for this reaction. If 71.8 g of Hgo is decomposed, calculate the volume of oxygen at STP
Suppose a 500 mL solution contains 0.50 millimoles of Co(NO3)2, 100.0 millimoles of NH3, and 175.0 millimoles of ethylenediamine. What is the concentration of Co 2+ (aq) in the solution?
The results of the experiment supported the hypothesis of semiconservative replication, which was proposed by Watson and Crick.
A growth factor for cells was identified from extracts of rat brain. Preliminary characterization was done on this activity using several methods.
If only COF2 is present initially at a concentration of 2.00 M , what concentration of COF2 remains at equilibrium? Express the molar expression numerically
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