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Lithium carbonate, Li2CO3, contains 18.8 % lithium and is used in the treatment of mental illnesses such as bipolar disorder. What mass of lithium is present in a 1.87-g dose of lithium carbonate?
Draw the resonance structures of the following compounds. Use formal charges to discern the most stable structure: ozone, sulfur trioxide, and nitromethane (CH3NO2)
question a student dissolves some ammonium nitrate nh4no3 in water notices that the beaker gets cooler as the solid
Glucose is approximately .10 % of human blood, by weight. Glucose has a formula weight of 180 g/mol. What is the conc of glucose in ppm
What are the advantages and disadvantages of natural products as lead compound?
consider a carnot refrigeration cycle with a working fluid of r-134a operating between temperatures of -10oc and 20oc.
an ethylene glycol solution contains 21.2 g of ethylene glycol in 85.4 ml of water. compute the freezing point and
Explain what observed rotation is expected when a 1.14 M solution of (R)-2-butanol is mixed with an equal volume of a 0.570 M solution of racemic 2-butanol, as well as the resulting solution is analyzed in a sample container that is 1 dm long
What impact does the presence of moisture in the unknown
A gas company in Boston charges $1.30 for 15.0ft3(cube) of natural gas,if it takes 0.304ft3(cube) of gas to boil a liter of water.starting at room temperature(25 degree Celsius),how much would it cost to boil 2.1-L kettle of water
What is the barium ion concentration in a saturated barium fluoride solution made by adding solid BaF2 until no more dissolved
Compute the mole fraction of CO in the mixture. b) The mixture is heated and the CO starts to react with O2 to give CO2 according to the equation: CO(g)+1/2O2->CO2. At equilibrium, 3.0 mol of CO2 is present. Using an ICE table, determine the mole fra..
Consider a hydrogen atom in the ground state. What is the energy of its electron? b. Consider a hydrogen atom in an excited state of
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