molecular weight distribution/molar mass distributionNMRpolyethersThe anionic polymerization of propylene oxide was investigated with potassium t -butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was used in controlling experiments. The relative molar mass limit of the products was ...
Calculate the molar mass of the compound boron trichloride. Calculate the mass (in grams) of 4.9 x 10^4 moles of sulfur hexafluoride. Calculate the number of moles in 49.2 g of sulfur. Calculate the mass of sulfur in 6.0 g of iron (III) sulfate. ...
In low molar mass organosiloxane liquid-crystal materials the siloxane moieties micro-separate and aggregate in planes that could be regarded as an effective or virtual two-dimensional polymer backbone. We show that if a siloxane moiety is attached to a dichroic dye molecule, the micro-segregation...
A 250 mL evacuated flask has a mass of 112.78 g when filled with 378 torr of an unknown gas at 29.0 °C. What is the molar mass of the unknown gas if the mass of the 250 mL evacuated flask is 112.36 g? 4PRACTICE PROBLEM
b.) iron (II) nitrate. c.) calcium tartarate. d.) cobalt (II) chlorate. What is the molar mass of copper II sulfate? What is the molar mass of NH4NO3? This is the chemical formula for chromium(III) nitrate: Cr(NO_3)_3. Calculate the mass percent of nitrogen in chromium(III) ...
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What is the molar mass of copper II sulfate? Copper(II) Sulfate: The formula for copper(II) sulfate is CuSO4. When five water molecules are physically attached to copper(II) sulfate, it is a blue crystal. Anhydrous (no attached water molecules) copper(II) sulfate is a white crystal. ...
MolarMassand1-StepMoleCalculations 1.Whatisthemolarmassofammoniumsulfate? 2.Whatisthemolarmassoflithiumphosphate? 3.Whatisthemolarmassofdinitrogenpentoxide? 4.Ifyouhave2.34x1024formulaunitsofiron(III)carbonate,howmanymolesdoyouhave? 5.Ifyouhave5.5molesofbariumchloride,howmanygramsdo youhave? 6.Ifyou...
Required:molar mass of H2S,MH2S Solution: Step 1.Look up the molar masses of the elements. MH=1.01 gol ;MS=32.07 gol Step 2.Add the molar masses of the elements,multiplying the molar mass of each element by the number of atoms of that element in the compound. ...
Write the chemical formula and calculate the molecular mass of perchloric acid. What is the formula for iron (II) phosphate? A compound has a molar mass of 960.56 g/mol and an empirical formula of [{MathJax fullWidth='false' C_{3}H_{4}O)_{5} }]...