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State substituting two hydrogen atoms on the benzene ring with methyl groups write line-angle formulas of all constitutional isomers. State the name each isomer.
Calculate the activity coefficient of glucose in this solution if the solution freezes at -0.66 C.
A gas occupies 12.3 liters at a pressure of 40.0 mmHg. What is the volume when the pressure in increased to 60.0 mmHg
Explain how the formation of a soap ‘micelle' helps remove dirt and oil in an aqueous environment.
Microwave ovens emit microwave energy with a wavelength of 12.0 cm. What is the energy of exactly one photon of this microwave radiation
Each 5 ml teaspoon of extra maalox plus contains 450 mg of magnessium hydroxide and 500 mg of aluminum hydroxide. How many moles of hydronium ion are neutralized by one teaspoonful of extra strength maalox plus
first generation computers were powered by nickel cadium batteries which generated 1.20 V based on the following reaction Cd(s)+2 NiO(OH)(s)+2 H2O(l)-> Cd(OH)(s)+2 Ni(OH)2(s)
If a non-insulated metal piston is filled with perfect gas at 1 atm of presssure and room temp and the gas is compressed with 10atm, the gas initially heats up and then cools down.
Write a net Ionic equation for the reaction that takes place when aq barium chloride soln reacts with an aq soln of potassium phosphate.
calculate the volume of carbon dioxide, measured at 273 k and 1.01 x 10 5 Pa, which would be produced when 1.25 g of calcium carbonate reacts completely with the hydrochloric acid.
The air track carts in the figure are sliding to the right at 1.0 meter per second. Find the speed of the carts.
Hydrocarbons are often reacted with steam to form H2, as shown for propane- C3H8(g) + 6 H2O(g) 3 CO2(g) + 10 H2(g) Calculate Kp for this reaction at a particular temperature
How does a sodium sulfide solution react when in contact with lead? Explain the chemistry behind this.
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