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Part of this unit concentrated on gaseous molecules, but stated that liquids and solids can also consist of molecules. Ethanol and aqueous film-forming foam are examples of liquid molecules. Discuss how the thickness (viscosity) of ethanol or aqueous film forming foams can be changed. Does the foam have a higher or lower molecular weight? Why, or why not? 200 words minimum.
Diamonds are measured in carats where 1 carat= 0.200 g. The density of diamond is 3.51 g/cm^3. What is the volume of a 2.50-carat diamond
What are the concentrations of HSO4-, SO42-, and H+ in a 0.20 M KHSO4 solution? (Hint H2SO4 is a strong acid; Ka for HSO4- = 1.3x10-2)
Explain why can a weak base like K2CO3 be utilized for phenacetin synthesis from acetaminophen, given that William ether syntheses with aliphatic alcohols needed powerful bases such as sodium anhydride or sodium metal. Give a reference as to the e..
Calculate the standard free energy change for silver sulfate dissolution at 25 degrees Celsius.
a calorimeter contains 25.0 grams of water at the temperature of fifteen degree celsius . when 2.10 grams of a
Offer a brief explanation of why bandgaps for octet p-block semiconductors (1) decrease with increasing average principal quantum number
When 1 mol of glucose is burned, 2802.5 KJ of energy is released. Calculate the quantity of energy released to a person by eating 5.00g of glucose in a candy.
Propyl alcohol (CH3CH2CH2OH) and isopropyl alcohol [(CH3)2CHOH], whose space-filling models are shown, have boiling points of 97.2 °C and 82.5 °C, respectively. Explain why the boiling point of propyl alcohol is higher, even though both have the m..
Which step is the rate determining step on a reaction?
All concentrations remain constant
what is the global pH change incurred after injection of the HCl? What would the pH change be if this same amount of 1.000 M HCl were put into a gallon of pure water?
If 145 grams of potassium nitrate were added to water to make 1,500 mL of solution, what would be the molarity of the resulting solution?
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