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How many moles of ZnCl2 are there in 327 g of this substance?
How many kcal are required to raise the temperature of 152g of ice at -15degre celcius to water at 55 degre celcius
A butane fireplace lighter contains 2.0g of butane. (C4H10) How many grams of oxygen are needed for the complete combustion of the butane in the lighter
use the appropriate standard reduction potentials to calculate the value of K at 25 degrees Celcius for:
Determine the subsequent reaction at equilibrium. Explain what effect will increasing the temperature have on the system
Calculate the standard cell potential and the equilibrium constant for the oxidation of ethanol to acetaldehyde. Calculate the equilibrium constant.
The half-life of cobalt-60 is 5.27 years. How many milligrams of cobalt-60 remain after 52.7 years if you start with 10.0 mg.
how many grams of sodium lactate should be added to 1.00 l of 0.160 m lactic acid to form a buffer solution with ph
When the unknown was treated with 3M (NH4)2CO3 solution a white precipitate formed. Because the acetic acid bottle was empty , the student used 6M HCl to dissolve the precipitate
New ads for the toyota Prius claim that it has saved over 1 billion gallons (2.8 x 10^9kg) of gasoline. Assuming that gasoline is 100% octane (C8H18) how much has the prius reduced emissions of carbon dioxide.
a chemist wants to prepare a solution with a freezing point of 22.0degc and has 100.00 g of glycerol on hand. what mass
The student then titrated 25ml of the same buffer with 0.1115M NaOH. The observed titration curve is shown before. what is the concentration of the weak acid in the buffer?
Determine the empirical and molecular formulas of anthraquinone.
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