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1) What is the molarity of a solution made by dissolving 6.79 g of sodium acetate in water and diluting to 750. mL? (molar mass NaC2H3O2is 82.0 g/mol.)
2) What volume (in mL) of 12 M HCI solution is required to prepare exactly 500. mL of a 0.12 M HCI solution?
What volume (in mL) of 12 M HCI solution is required to prepare exactly 500. mL of a 0.12 M HCI solution?
A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.61 nm. It then gives off a photon having a wavelength of 950 nm. What is the final state of the hydrogen atom
A 0.146 g sample of an unknown monoprotic acid (molar mass = 83.0 g/mol) was dissolved in 50.0 mL of water and titrated with a 0.101 M NaOH solution. After the addition of 14.0 mL of base, the pH was 5.12. What was the Ka for the unknown acid
The dired sludge is 95% solids (5% water), and the liquid stream contains 8% solids. What is the quantity of dried sludge, and what is the liquid and solids flow in the liquid stream?
A recipe for applesauce requires 3 cups of apple juice. You only have a metric measuring cup. How many liters of apple juice do you need? Recall that 1 quart = 4 cups, and that 1 liter = 1.057 quarts.
Calculate percent recovery of panacetin from the individual masses of its mictures, sucrose (.044g), aspirine (.093), and the unknown (.339).
solid lithium hydroxide reacts with gaseous carbon dioxide to form solid lithium carbonate and liquid water. what mass
A 0.484g sample of impure NH4Br is treated with 25.00ml of 0.2050 M NaOH and heated to drive off the NH3. The unreacted NaOH in the reaction mixture after heating required 9.95mL of 0.0525 M H2C2O4 to neutralize.
Describe how you could determine the specific heat of a metal by using the apparatus and techniques
N2+3H2 yields 2NH3 at STP How many grams of nitrogen are needed to react with 1.4L of hydroden
how many grams of iron (2) chloride would you need in order to make 2.0 L of a .050 M iron (2) Chloride solution?
What is the smallest possible integer coefficient of S in the combined balanced equation and compute the final pressure in the tank if nothing else is altered in the surroundings.
One of the more effective treatments for HIV-positive individuals has been for them to take protease inhibitor cocktails. certain proteases are required for the virus to mature and these inhibitors prevent them from functioning.
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