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How many grams of KCOOH are needed to prepare 150 ml a buffered solution of pH 3.85 if the acid concentration, HCOOH is 0.1M?
The car has a city mileage of 20 miles per gallon. If the car is replaced with the new car with city mileage off 32 miles per gallon and the average cost of gasoline is $3.62 per gallon, estimate the amount of fuel, energy, and money conserved wit..
A substance has a solubility of 350 ppm. How many grams of the substance are present in 1.0 L of a saturated solution.
Designate each isomer as cis or trans and also indicate if it is chiral or not. indicate the one isomer that dose not have a plane of symmetry but is not chiral.
As the protons are transported into the cell, ATP synthesis can be coupled to this process by the enzyme ATP synthase. At 100% efficiency, under the conditions listed above, how many protons must be transported to synthesize one molecule of ATP
Write the molecular equation for the combination of KNO3 (aq) and BaCl2 (aq). Include states of matter. I wrote 2KNO3 (aq) + BaCl2 (aq) ---> 2KCl (aq) + Ba(NO3)2 (aq) but it says it is wrong.
What is the potential (volts) of the cell at 25oC when the appropriate beakers are constructed to have MnO2 = 0.0127 mols, [H+] = 0.0130 M, [Mn2+] = 0.167 M, [IO3-] = 0.146 M, and I2 = 0.0154 mols [Note: The standard reduction potentials of the tw..
A metal M in the third period reacts with a nonmetal in X the second period to form the ionic compound MX, What is the formula of this compound
At 0°C a 1.00 L flask contains 6.90 10-2 mol N2, 4.40 102 mg O2, and NO at a concentration of 9.00 1018 molecules/cm3. What is the partial pressure of each gas, and what is the total pressure in the flask?
62.8 mL of air is collected over water at 24 degrees celsius and 733 mm Hg pressure. find the volume of the dry air at STP
Pick the words that correctly finishes the following sentence. A reaction will always be spontaneous if it is and there is an increase in disorder
glycerol has a density of and a molecular weight of. If mL are mixed with a kg of water, what is a good estimate of the temperature at which this solution with freeze?
One binkle is defined as being exactly 3 × 10^12. A) If you had 1.0 kg of nails and 1.0 kg of helium atoms, would you expect them to have the same number of binkles? Using complete sentences
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