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A foundry releases 6.0 tons of gas into the atmosphere everyday. The gas mixture contains 2.5% sulfur dioxide (SO2) by weight. How many pounds of SO2 are released in one week? (Sig figs matter)
a solution of lactic acid, HC3H5O3, on a laboratory shelf was undetermined concentration. If the pH of the solution was found to be 2.51, what was the concentration of the lactic acid?
The product of the final step in the synthesis below are acetone and acetaldehyde. What are the identities of compounds A and B?
Is the wave behavior of light adequate to explain all phenomena? Give three examples of cases
A Scientist uses an ultra-high vacuum chamber that has a pressure of 6.5x 10^-12 torr. If the temperature is 298 K, how many molecules are there in 2.0 cm^3? What is the molar volume
what volume of vinegar would be needed to react with 18.00 grams of baking soda? Assume the density of vinegar is the same as that of water.
Lysozyme is an enzyme that breaks down bacterial cell walls. It is found in tears and egg whites and elsewhere. A solution containing 0.150 g of lysozyme in 210 mL of water solution has an osmotic
The rate constant k for a first order reaction is 1.36 * 10 -3 s -1 at 90 degrees Celcius and the activation energy is 78.4 kJ/mol. What is the rate constant for this reaction at 50 degrees Celcius?
50.0 mL of 2.00 M H2SO4 react with 75.0 mL of 2.00M NaOH. Identify the limiting and excess reactants. How many grams of Na2SO4 will be formed.
What is the smallest amount of CuO (in moles) that would establish the equilibrium?
predict the formula of a compound that presumably would result from the reaction between magnesium and topaline, and name the compound.
understand that covalent-network solids are hard and have high melting points and that molecular solids are soft and have low melting points, but how do I determine the difference if given an chemical formula?
What is the maximum number of electrons in an atom that can have the following set of quantum numbers?
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