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calculate OH for a solution formed by adding 5.80 mL of 0.190 KOH to 20.0 mL of 7.5×10-2M Ca(OH)2.
A gaseous mixture contains 450.0 Torr of H2(g), 358.7 Torr of N2(g), and 65.1 Torr of Ar(g). Calculate the mole fraction, X, of each of these gases.
If only COF2 is present initially at a concentration of 2.00 M , what concentration of COF2 remains at equilibrium? Express the molar expression numerically
Consider the acid-catalyzed cleavage of propylene oxide with 1-propanol. Provide abbreviated structural formulas for the protonated epoxide substrate and of 1-propanol
How does a base, such as NaOH, help to catalyze the benzoin condensation when thiamine is present
airbags contain a mixture of sodium azide potassium nitrate and silicon dioxide. a sensor detects a head on collision
Oxygen gas can be obtained by the thermal decomposition of mercuric oxide; 2 HgO(s) + heat ® 2 Hg(l) + O2(g) What volume in liters of oxygen gas, measured at 6.926 °C and 0.9130 atm, would be produced from 12.43 g of HgO
A layer of peat beneath the glacial sediments of the last ice age has a carbon-14/carbon-12 ratio that is 21.0% of that found in living organisms
Write the correct equation accounting for the ready formation of metallic deposit on placing a magnesium strip into 0.1 M iron nitrate
If 8.40 kJ of heat is needed to raise the temperature of a sample of metal from 15 degrees celsius to 20 degrees celsius, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 25 degrees celsius to ..
Describe two different ways by which electrons can move from the valence band to the conduction band.
synthesis gas can be made by reacting red-hot coal with steam. estimate the temperature at which the equilibrium
Ethanol normally boils at 78.4C. the boiling point elevation constant for ethanol is 1.22C/m. what is the boiling point of a 1.0 m solution
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