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Suppose a certain pipet delivered 129 mg of a solution at 20 °C. If the solution had a density of 1.0359 g/mL, what volume of the solution was delivered?
Using a sample that was dissolved in CH 2 Cl 2 , mixed alumina, evaporated the CH 2 C l2 , loaded and began to run his column, starting with C 6 H 14
Explain how many grams of sodium lactate (NaC3H5O3) should be added to 1.00 L of 0.150 M lactic acid (HC3H5O3) to form a buffer solution with pH 4.00? Presume that no volume change occurs when the sodium lactate is added. The Ka for lactic acid is..
The molar solubility of PbBr2 at 25 °C is 1.0 X 10-2 mol/L. Calculate. Ksp, If 0.0490 g of AgIO3 dissolves per liter of solution, calculate the solubility-product constant.
What's the purpose of acetic acid and sodium acetate in the lab bromination and debromination of cholesterol?
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 432 cm^3 and the total mass is 4.32 kg
A solid mixture consists of 34.0g of KNO3 and 6.0g of K2SO4. The mixture is added to 130.0g of water. (this problem includes a solubility curve for other answers).
P2.36) A pellet of Zn of mass 31.2 g is dropped into a flask containing dilute H2SO4 at a pressure P = 1.00 bar and temperature T = 300. K. What is the reaction that occurs? Calculate w for the process. Ans. w = -1190 J
Can humans hear ultrasound? Give some examples of applications of ultrasound. Why does the music coming from a band marching in a spread-out formation on a football field sometimes sound discordant?
It is the universal solvent d. it does not participate in the reaction e. it is necessary for the formation of the bromonium ion
Explain the hydrate of sodium carbonate contains 62.9% water by mass. Utilize this value to verify the chemical formula of the hydrate of sodium carbonate. Presume a 100.0 gram basis
-A stable molecule will form from an atom of nitrogen and an atom of oxygen. the proper name and formula of this compound would be: 1)Oxygen Nitrogen,ON 2)Nitrogen Oxygen, NO 3)Oxygen nitride,ON 4)nitrogen oxide,NO
In the first 12.0 of the reaction, 1.8×10-2 of is produced in a reaction vessel with a volume of 0.260 . What is the average rate of the reaction over this time interval.
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