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What is the pH of a solution made by mixing 100.0 mL of 0.10 M HNO3, 50.0 mL of 0.20 M HCl, and 100.0 mL of water? Assume that the volumes are additive.
What mass of NaOH could this buffer neutralize before the pH rises above 4?
What mass in grams of tryptophan is in 0.25 quart of milk, assuming tryptophan accounts for 2.0% of milk by mass and that the density of milk is 1.04 kg/L.
The normal boiling and freezing points of substance X are 87.3 K and 84.0 K respectively. The triple point is at 82.7 K and 0.68 atmosphere. a. Draw a phase diagram for substance X. Label the regions in which the s,l, and g phases are stable.
At a given temperature the vapor pressures of benzene and toluene are 183 mm Hg and 59.2 mm Hg, respectively. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenezene = 0.600.
a natural hormone of moths has a molecular formula of C21H40(its a zero not an o) and yields the following three compounds on ozonolysis; (1) dodecanol
Wind energy; Are there any by-products (positive as well as negative) created in the energy production? Are there limits to how the energy could be used (transportation, heating, etc)
We mixed ortho vanillin with carbethoxymethylene triphenyphosphorane. I would like to know how the imide was created in the first step. What protonated the amine before the amine protonates the carbonyl
The Greenhouse Effect - how the sun's visible light is converted into trapped infra red light and heat, causing the planet to warm up.
Lead pigments were used in water colour painting which turned black after prolonged to an air pollutant the original color was restored by using H2O2 which pollutant turned the painting black?
carbonyl chloride cocl2 also called phosgene wasused in world war i as a poisonous gas. the equilibriumconcentrations
How many grams of carbon dioxide would be obtained from the burning of 92g of ethanol in oxygen?
Write the balanced molecular equation using K+ and Cl- as the spectator ions. If you were to balance the following equation that occurs in basic solution, how many electrons are being transferred overall?
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