Calculate the ph of a solution made
Calculate the pH of a solution made by adding 67 g of sodium acetate, NaCH3COO, to 37 g of acetic acid, CH3COOH, and dissolving in water to make 300. mL of solution .
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Fireflies flash at a rate that depends on temperature. At 29o C the average rate is 3.3 flashes every 10 seconds; at 23oC the average rate falls to 2.7 flashes every 10 seconds. Calculate the activation energy for the flashing process.
What is the new boiling point point of water if you add 188 grams of magnesium chloride to 1250 g of water?
The total expenditure for health services in 2007 was 83 times the total expenditure in 1960, increasing from $26.9 billion to $2.2 trillion. What factors account for this increase? How much did each factor contribute to this increase?
in order to change the volume of an 800ml sample of a gas 274k to 400ml, what temperature (in celsius) must be reached, assuming the pressure is kept constant?
Explain how music and culture influence one another. Provide an example of a song or album that affected culture. Provide examples of songs with cultural references.
Explain how this could be done. How much 0.20 mol L^(-1) NaOH must be added to this buffer to raise the pH to 5.1? If the same amount of 0.20 mol L^(-1) NaOH.
How are the structures of HR departments changing? What will they look like in the future? What roles and responsibilities will future HR leaders need?
Phosphorus -32 has a half life of 14.0 days. Starting with 6.00 g of 32P, how many grams will remain after 70 days?
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