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A sample of iron was heated to 125.0 degrees Celsius, then placed into 375 g of water at 19.8 degrees Celsius. The temperature of the water rose to 25.6 degrees Celsius. How many grams of iron were in the sample?
If emitted particles with a given diameter are found to settle out after 7 days, how long would it take a particle of the same material with 1x the diameter to settle out?
The molarity of Ca2+ in a saturated solution of CaCO3 was determined to be 0.0000616 M. Calculate the solubility product constant (Ksp) for CaCO3. CaCO3 (s) Ca2+ (aq) + CO32- (aq) Molar Mass (g/mol) CaCO3 100.09
Calculate the number of moles and molality of the solution prepared by dissolving 4.00g of NaOH in 250.0g of water.
Compare the bond enthalpies of the carbon-carbon single, double, and triple bonds to deduce to an average p bond contribution to the enthalpy. What fraction of a single bond does this quantity represent
The carboxylate groups in sugammadex play an important binding role in locking rocuronium into the central cavity of the cyclodextrin, but they also have an important role in allowing the drug access to the cavity.
Presume a .250 L sample of vinegar had an acetic acid concentration of .850 M. Explain how many moles of acetic acid would be present in the solution
Explain the pressure-temperature coexistence line for solid-vapor equilibrium sublimation is for all time less steep in a P versus T plot for a pure material than is the melting line. Define why.
When 123.8 g of ethylene (C2H4) burns in oxygen to give carbon dioxide and water, how many grams of CO2 are formed
how many grams of magnesium metal will react completely with 4.8 liters of 5.0 m hcl? show all of the work needed to
Arrange the molecules in order of decreasing boiling point Molecules are methane, dimethyl ether
Question- A certain protein only folds in solutions of pH= 4.3-4.7 to study this folding process you would choose a weak acid with Ka=
Write the angular momentum quantum number (l), and magnetic quantum number (ml) of orbitals with principle quantum number (n) of 4.
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