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how to break glass bottles where you soak yarn in acetone, tie it around the bottle, light it on fire for 20-30 seconds then submerge it in water and the glass seperates. However, explain how all this works. Such as, why do you use yarn, why not any other type of string? Why acetone, and why not lighter fluid or gasoline? What makes the glass break?
Comment of the effectiveness of targeted prodrugs such as Xeloda for specific cancers such as liver tumors, as well as their effectiveness as a broad "cure for cancer
Calculate the number of moles of KHP? b. How many moles of NaOH will react with the KHP dissolved in water? c. Calculate the Molarity of the NaOH solution?
A chemist titrates 20.00 mL of 0.2000 M HBrO ( Ka= 2.3 x 10^-9) with .1000 M NaOH. What is the pH? A) Before any base is added? B) When [HBrO] = [ BrO-] C) at the equivalence point
If I have 7.6057 grams of helium gas held at a temperature of 5 atm and in a container with a volume of 50 liters, what is the temperature
What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with a pH of 2.50?
the half life increased from 2.0 min to 4.0 min at 25C. Calculate the the order of the reaction and the rate constant.
Alka-Seltzer contains both baking soda (NaHCO3) and citric acid (H3C6H5O7). The reaction between the bicarbonate ion and citric acid produces water
Given that the most common mineral in limestone is calcium carbonate, describe how these limestone objects are corroded by the sulfuric acid in polluted air. What chemical reaction is involved here?
A helium-filled weather balloon has a volume of 815 L at 22 oC and 752 mmHg. It is released and rises to an altitude of 7.16 km, where the pressure is 364 mm Hg and the temperature is -25oC
The pressures ranges between 0.2 bar and 60 bar. Determine the net work produced and the efficiency of the cycle?
What will be the experimental enthalpy of reaction when 0.5000g of zinc reacts with 20.00mL of 1.500M HCl, changing the temperatrure of the solution
determine the specific heat of a material if a 35 g sample of the material absorbs 48 j as it is heated from 298 k to 313 k
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