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A merry go round accelerates from resr to 0.76 rad/s in 30s. Assuming the merry go round is a uniform disc of radius 6.0m and mass 3.20x10^4 kg. Calculate the net torque required to accelerate it.
How many moles of AgCl are produced when 100.0 mL 0.387 M silver nitrate, AgNO3, and 50.0 mL of 0.774 M sodium chloride, NaCl, are mixed AgNO3(aq)+NaCl(aq)---->AgCl(s)+NaNO3(aq)
Calculate the pH of the solution at the equivalence point. b) What volume of 0.05 M HCl solution should be added to the sodium glutamate solution to yield a pH of 4.5?
The heat of formation of MnO is -385 kj/mol and that of Al2O3 is -1670 kj/mol. What is the heat of the reaction in kj
if you are using 15. ml of 6.0 h2o2 by mass mm and you assume that the density of the solution is 1.0 gml and that all
In the "free electron molecular orbital" (FEMO) theory, the electrons in a conjugated molecule are treated as independent particles in a box of length L. Predict the minimum excitation energy in butadiene.
How many grams of a stock solution that is 85.5 percent H2SO4 by mass would be needed to make 150 grams of a 45.0 percent by mass solution?
7.2 liters of an ideal gas are contained at 4.0 atm and 27 °C. Using the ideal gas law, calculate how many moles of this gas are present.
A 150.0 ml flask contains 0.391 grams of volatile oxide of sulfur. The pressure in the flask is 750mmHg and the temperature is 22 degrees Celsius.
The solubility of benzoic acid in water is 5.9 g/100 mL at 100°C; 0.30 g/ 100 mL at 25°C; and 0.17 g/100 mL at 0°C. Can a mixture of approximately equal amounts of benzoic acid and salicylic acid be separated by recrystallization? Explain.
When one of the atoms involved in a covalent bond has a much higher electronegativity than the other a bond results.
If you thoroughly mix 25 mL of a liquid chemical, whose density is 0.95 g mL -1, with 200 mL of water, what is the concentration of the chemical
What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires 29.80 mL of 0. 3567 M NaOH? Ka =1.8 × 10-4 for formic acid.
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