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What is the balance chemical equation for the reaction of CuSO4 + NAOH and what is the reaction classification.
A Solution of 1.69g of this compound in 9.23g of benzene freezes at 2.18 degree celsius. What are the molecular formula and molar mass of the compound? ( the normal freezing point of pure benzene is 5.50 degree celsius)
In the technique of electron impact mass spectroscopy, molecular fragment are identified through a characteristic pattern of peaks at different values of m/z
how many rads does a 81- kg human receive each year from the approximate 10^-8 grams of 14 C naturally present in her body? (t 1/2 = 5,730 yr; each disintegration releases 0.156 MeV.)
A student placed 18.0 of glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mark on the neck of the flask was reached.
a solution containing 3.47mm x analyte and 1.72 mm s standard gave peak areas of 3473 and 10222 respectively in a
If 2.0x10^-4 moles of S2O8. In 100 ml solutions is consumed in 120 seconds what is the rate law
An aqueous solution containing 36.0 g of an unknown molecular (non electrolyte) compound in 159.7 g of water was found to have a freezing point of -1.2 degrees celcius. Calculate the molar mass of the unknown compound.
A sample of sodium reacts completely with 0.142kg of chlorine, forming 234g of sodium chloride. What mass of sodium reacted?
Calculate the pH at the equivalence point for the titration of 0.200 M methylamine (CH3NH2) with 0.200 M HCl.
The specific heat of lead is 0.0380cal/g degree celcius. If 47.0 calories of energy raised the temperature of a lead sample from 28.3 degrees celcius to 30.1 degrees celcius.
For a particular reaction the hydroxide ion is one of the reactants. Doubling the concentration of the hydroxide ion, while holding all the other concentrations constant, changes the rate of the reaction from 0.002 to 0.008. what is the order with..
Calculate the cumulative acid equivalents per square meter that were deposited in the watershed over the entire period 1880-1950.
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