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A student placed 20.0 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 40.0 mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution?
Consider the gas-phase reaction A + 2B 2C + D. Starting with 1.0 mole of A and 1.0 mole of B in 2.0 liter container, the reaction proceeds to equilibrium at T = 103C with 8.6 × 10-2 moles of C now present.
The enthalpy change for converting 1.00 mol of ice at -50.0 degrees C to water at 70.0 degrees C is ____ Kj. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-k and 1.84 J/g-k, respectively.
Phosphorous acid, is an important compound in industry and agriculture, H3PO3(aq), is a diprotic oxyacid .determine the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq).
What is the total mass of water raised 68.7 m during this 206.0 minute period? (in kg) How long can the turbines produce 335.0 MW of power from the release of the mass of stored water calculated above? Assume the water sustains a friction loss of ..
Explain why p-nitrophenol is a stronger acid than phenol itself. P-methoxyphenol and acidity
How many L of H2 gas (at STP) is produced from 470 mL of 0.36 M HCl and excess Zn? The reaction is: Zn + 2HCl = ZnCl2 + H2
What is the concentration of unknown acid solution? Write the neutralization reaction, balance it, name the products THEN Solve the problem above.
If the copper is drawn into wire whose diameter is 8.20 , how many feet of copper can be obtained from the ingot? The density of copper is 8.94.
A stock solution is prepared by adding 21 mL of 1 M AlCl3 to enough water to make 76 mL. What is the Cl- concentration of 40 mL of the stock solution?
What is the pH of a 0.15M solution of HCOOH formic acid if the Ka of formic acid HCOOH is 1.8x10^-4 at 25 degrees Celsius.?
What volume of carbon dioxide is produced at 1 atm and 87 °C when 1.6 liters of methyl alcohol burns? What volume of liquid water is produced in this reaction?
assuming that the gas behaes ideally. Then repeat the calculation by using the van der Waals equation
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