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Explain what the early scientists from Aristotle to Galileo thought about the nature of motion. (Hint: Need to include Aristotle, Galileo, and Copernicus.)
Problem- A solution of NaOH(aq) contains 7.9 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C.
Using the reaction 2C6H6+15O2--->12CO2+6H2O, what volume of carbon dioxide will be produced when 128.0 grams of benzene react.
Given the parent compound, draw the mass spectrum fragment that is observed at m/z 77. Include any hydrogen atoms and the charge. The compound given is a cyclohexene with double bonds at every other one. It also has a chlorine coming off one of th..
Sodium fluoride is added to many municipal water supplies to reduce tooth decay. Calculate the pH of a 0.00304 M solution of NaF
The result described is impossible, given the fact that delta G is -60 kJ/mol. d. The activation energy for the reaction is very large; equilibrium has not been reached by 24 hours. e. An enzyme has shifted the equilibrium toward A.
100g of water specific heat4.184 jgc and 100g of a metal sample specific heat0.397 jgc are heated from 25 degrees
The density of benzene at 15C is 0.8787 g/mL. Calculate the mass of 0.1500 L of benzene at this temperature.
Given that Ea for a certain biological reaction is 48kJ/mol and that the rate constant is 2.5 x 10^-2 s-1 at 15 degrees celsius
A solution of potassium chromate is prepared at pH 7.72. Calculate the fraction of the total chromate in this solution that is present as the chromate ion CrO42-.
What it the pH of a mixture of 15 mL of .25 M acetic acid and .46 g of sodium acetate and trihydride? Acetic Acid Ka=1.76*10^-5
In a gas mixture, the partial pressures are argon 425 , neon 60 , and nitrogen 125 .What is the total pressure exerted by the gas mixture?
A hydrocarbon contains 40.0% carbon 6.66% hydrogen as well as the remainder oxygen. It has molar mass of 180.1 grams. Find out the molecular formula of the compound.
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