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Question- A sample of rainwater is observed to have a pH of 7.4. If only atmospheric CO2 at 380 ppm and limestone dust are present in the atmosphere to alter the pH from a neutral value, and if each raindrop has a volume of 0.02 cm3, what mass of calcium is present in each raindrop?
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A sample of indium chloride weighing 0.5000g is found to contain 0.2404g of chlorine. What is the empirical formula of the indium compound
NH2, is neutralized by a KOH solution. A 25.70 mL of KOH was added to the solution and 3.40 mL of HCl was used to back titrate the solution. In the ratio determination of 23.10 mL, HCl was used to completely neutralize 20.00 mL of KOH. Find the no..
the Van der Waals equation of state to find the critical temp and pressure for a fluid
Calculate the equilibrium constant KP if the total pressure is 2.6 atm at that temperature.
What is the change in the measurement of the potential if a solution of 1.00x10-3 M NaF is exchanged for another solution of 1.00x10-4 M NaF?
a student mixed 75.0 ml of water containing .75 mol hcl with 75.0 ml of water containing .75 mol of naoh at 25c in a
A beaker with 145mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M
Depict structural formulas that indicate the geometry of the following complexes. Define If the geometric or optical isomers are possible include them and label each form.
the atomic weight of a newly discovered element is 98.225 amu. it has two naturally occuring isotopes. one isotope has
For a reaction that follows the general rate law, Rate=k[A][B]^2, what will happen to the rate of reaction if the concentration of B is increased by a factor of 3.00
Calculate the molarity of a sodium hydroxide solution if a 0.7216 g sample of KHP was dissolved in 50 mL of water and titrated with 24.71 mL of sodium hydroxide to a phenolphthalein end point.
A gas sample is known to be a mixture of ethane and butane. A bulb having a 230.0-cm3 capacity is filled with the gas to a pressure of 97.5 × 103 Pa at 23.1oC. If the weight of the gas in the bulb is 0.3554 g, what is the mole percent of butane in..
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