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Molecular distances are usually given in nanometers (1 nm = 1 × 10-9 m) or in picometers (1 pm = 1 × 10-12 m). However, the angstrom (Å) unit is sometimes used, where 1 Å = 1 × 10-10 m. (The angstrom unit is not an SI unit.) If the distance between the Pt atom and the N atom in the cancer chemotherapy drug cisplatin is 1.97 Å, what is this distance in nanometers? In picometers?
a graduated cylinder contains 18.5 rm ml of water. what is the new water level after 30.0 rm g of silver metal with a
The seer is an old Indian unit of weight, used to measure the amount of grain. If a bag of grain has a mass of 2.94 seers, what would its weight be in pounds
You need 70.2J to raise the temperature of 34.0 g of ammonia, NH3 (g), from 23.0C to 24.0C. Calculate the specific heat of ammonia.
Question- The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.3. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.65 M B(aq) with 0.65 M HCl(aq}
Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) = Na2CO3(s) + CO2(gas) + H2O(gas) Given that for this reaction delta H = 135.5 KiloJoules and delta G = 33.1 KiloJoules at 25 degrees C, at what temperature will the reaction b..
Calculate Pt, in atm, when 10.0g each of CO, Ar, and N2 are mixed in a 6.0L container at 57 degrees C. a) 1.3 b) 20.4
Lightweight wood trusses have received substantial attention in the last several years, including an alert issued by NIOSH in 2005. Although this is somewhat dated, the message still applies for today's fire service.
What is the isotopic difference (in per mil) at 25degrees between gas, liquid, and solid phase for the elements carbon and sulfur. Show calculations
A 2.067-g sample of a monoprotic acid was dissolved in water. It took 25.24 mL of a 0.1578 M NaOH solution to neutralize the acid. Calculate the molar mass of the acid.
A 7.75-L container holds a mixture of two gases at 37 °C. The partial pressures of gas A and gas B, respectively, are 0.209 atm and 0.735 atm. If 0.130 mol a third gas is added with no change in volume or temperature, what will the total pressure ..
The Ksp of HgS is around 10^-54. How many liters of water should it take to dissolve one molecule of this compound
The first step of the fischer esterification involves protonation of the oxygen of the carboxylic acid by the acid catalyst:
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