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Define calorimetry and provide an example of its use. Include calculations.
25g of a hydrocarbon undergoes complete combustion leading to the formation of 77 g of CO2. What is the % of carbon in the hydrocarbon?
terephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. it contains only c h
What would be the circumference in inches of a 25.0 pound solid steel cannon ball if the density of steel is 7.7 x 10^3 kg/m^3? Explain by dimensional analysis
What are the values of [SO42- ], [Pb2+ ], and [Sr2+ ] in a solution at equilibrium with both substances? the answer is not 5.*10^-4 or 7.94*10^-4 because mastering chem keeps marking me wrong for that. Can you work it out nicely.
When 2 mole of A is reacted with 2 moles of B, 3 moles of C are formed. When 1 mole of A is reacted with 3 moles of B, 3 moles of C are again formed. Based on this, what is the balanced reaction?
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 is the change in internal energy (in J) of a system that absorbs 0.532 kJ of heat from its surroundings and has 0.225 kcal of work done on it? = j
How many 325 mg aspirin tablets are needed for a 120 lb. patient if the recommended dose is 6.50 mg of aspirin per Kg of body weight. How many molecules does the patient ingest
When 0.938 milliliters of sulfuric acid is reacted with 2.5 milliliters of 0.00125 M potassium hydroxide, what pH reading would you expect
Why do you think the enthalpy of activation, H ‡ , for a syn-periplanar elimination is higher than that for an anti-periplanar elimination
525mL of 1.50M NaCl is added to a beaker containing 378mL of 2.22M AgNO3, resulting in the formation of AgCl precipitate.
If it takes 4.67 times as long for a particular gas to effuse as it takes hydrogen under the same conditions, what is the molecular mass of the gas?
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