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Problem- Teflon is produced from the polymerization of Tetrafluroethene, Cf2=Cf2. Predict the structure of Teflon showing the monomeric unit in parenthesis
10 mL of 5% aqueous hexamethylenediamine was placed in a 50mL beaker. Calculate the moles given density of 0.84 g/mL.
Please carry out what you can and illustrate your work so I can follow. Thanks
If 69.5 kJ of heat is applied to a 1034 g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
For the cell reaction: Cu(s) + 2Fe3+ ? 2Fe2+ + Cu2+ Ecell° = 0.33 V What is the value of the equilibrium constant at 25°C for the cell reaction
what was the delta t for the metal? c) how much heat flowed into the water? d) taking the specific heat of water to be 4.18J/gC, calculate the specific heat of the metal e) what is the approximate molar mass of the metal using the equation MM=25/S..
Which radioactive decay particle poses the greatest risk if it is external to the body? Why? 2- Which is safer, an isotope with a short half-life or one with a long half-life?
Of the choices below, which would be the best for the lining of a tank intended for use in storage of hydrochloric acid.
Given the subsequent data Amax = 1.699, Amin =0.000, Ab=0.523, as well as the pH of the solution is 6.66. Compute the pKa ad n the Ka.
Explain what should be the approximate chemical shifts number for protons found on the tert-butyl groups of BHT
Question- We considered mixing a strong base with a weak acid, but we did not consider mixing a strong acid with a weak acid. Consider mixing 0.1M HNO3and 0.1M HNO2. Predict the pH of the solution and the percent ionization of the nitrous acid. Ra..
Draw the lewis structure of BeF2. I think its suppose to be an incomplete octet but why becuaseif you place two double bonds Be is complete.
What is the new freezing point of a solution with 100.g of CaCl2 in every kg of water? The Kf of water is 1.86 degrees celsius/m. Solve the problem.
One of the first steps in the enrichment of uranium for use in nuclear power plants involves a displacement reaction between and aqueous HF.
The ball travels straight upward. In the absence of air resistance, to what maximum height above the ground does the ball rise
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