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Which mixture would not be expected to be homogeneous? pentanol and hexane, KBr and water, acetic acid and methanol, ethylene glycol and water, octane and heptane?
When working NMR questions, solutions maunuals say that the peaks are 1.0 spaces long or 5.5 spaces long.
If a solution containing 61.402 g of mercury(II) perchlorate is allowed to react completely with a solution containing 17.796 g of sodium sulfate, how many grams of solid precipitate will be formed?
According to the following reaction, how many moles of sulfur trioxide will be formed upon the complete reaction of 0.429 moles sulfur dioxide with excess oxygen gas
dry-cleaning solvent molecular weight 146.99 gmol that contains c h and cl is suspected to be a cancer-causing agent.
Which radio station broadcasts at a longer wavelength: 93.9 FM or 104.3 FM? To support your answer, list the actual wavelength values and units for each of these radio stations.
A 250 gram sample of water at the boiling point had 45.0 kJ of heat added. How many grams of water were vaporized? Heat of vaporization for water is 40.6 kJ/mole
If the atomic radius of a metal that has the body-centered cubic crystal structure is 0.184 nm, calculate the volume of its unit cell ( in nm^3)
Three compounds, hexane, heptane, and an unknown molecule were separated using gas chromatography. The adjusted retention times were 10.4 min for hexane,
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
A mineral oil has a density of 0.875g/cm^3. Suppose you spread 0.65g of this oil over the surface of water in a large dish with an inner diameter of 21.6 cm. How this is this oil layer
A current of 3.87 A is passed through a Cr(NO3)2 solution for 1.10 hours. How much chromium is plated out of the solution? in (g)
many enzymes are inhibited irreversibly by heavy-metal ions such ashg2 cu2 or ag which can react with essential
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