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If the volume (in cm^3) of an ethanol/water mixture at 298K in 1kg of water can be expressed in polynomial form, vs the number of moles of ethanol (nEtOH), as 1002.93+54.6664*nEthOH-0.36394*nEthOH^2+0.028256*nEtOH^3, the partial molar volume of ethanol has its minimum value at m > 0.004 mol/kg.
For each of the following, calculate the concentration of Tris, Tris-H+ and the pH of the solution in each of the following solutions.
A 64gram piece of ice at 0 celsius is added to a sample of water at 9 celsius. All of the ice melts and the temperature of the water decreases to 0 celsius. how many grams of water were in the sample?
What is the final volume of the balloon? Assume ideal-gas behavior. A very flexible balloon with a volume of 1.2 L at 1.0 atm at 300 K is allowed to rise to the stratosphere
where it is burned with 12% excess air. Calculate the required flow rate of air in SCMH(standard cubic meters per hour).
What is the substance being oxidized?
Recommend an explanation why the cyclic intermediate might have two important groups in a trans relationship that could factor the E-alkene.
Then the gas is cooled at a constant volume of 25.0L back to its original temperature. Then it contracts back at a constant tempurature to its original volume. Find the total heat flow for the entire process.
The molarity (moles/L = M) of a solution of 4.0 g NaOH in a total volume of 100.0 mL (or 40 g in 1.0 L) is what?
Describe how would your result be affected if you mistook a negative Starch-iodide test and stopped adding the NaOCl solution too early?
When heated to 350 at 0.950 , ammonium nitrate decomposes to produce nitrogen, water, and oxygen gases.
The resulting solution has an osmotic pressure of 0.544 atm at 25°C. Assuming that the organic compound is a nonelectrolyte, what is its molar mass?
what is the order of increasing stability: Li2,Li2+,Li2-?
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