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1. Concrete etch solution can be used to clean concrete before painting it. The directions tell you to dissolve 680 g of sodium bisulfate in 3.4 L of water. What is the concentration of this solution, in g/100 mL?
2. Concentrated hydrogen peroxide in high school labs is 30% W/V H2O2 dissolved in water. Calculate the mass of pure H2O2 dissolved in a 450 mL bottle?
3. The concentration of an HCl solution is initially 6.0 mol/L. What is the concentration of a new solution if 200 mL of the original HCl solution is diluted to 1.0 L with water?
why the multi-protein PDH complex for the pyruvate decarboxylation process (that consists of E1 (Pyruvate Dehydrogenase), E2 (Dihydrolipoyl transacetylase), and E3 (Dihydrolipoyl dehydrogenase)) is more efficient than using independent enzymes to ..
Write an empirical formula for each of the following. using the format CO2 for CO2. ethylene glycol, car antifreeze, molecular formula C2H6O2
Calculate concentrations of all species present (Na+,C6H5CO2-, C6H5CO2H, OH- and H3O+) in 0.048 sodium benzoate.
A welding cylinder contains argon and carbon dioxide. the Total pressure of the cylinder is 2500.0 torr. The argon is at a pressure of 0.890 atm. what is the pressure of the carbon dioxide in the cylinder in torr?
Calculate total enthalpy change in the first stage and in both stages.
Draw the amine from the following: A Hofmann degradation of a primary amine forms an alkene that gives butanal
what is the molarity of phosphoric acid in a solution that is 84% by mass phosphoric acid and has a density of 1.87 g/ml?
Question- When nitroglycerine, C3H5(NO3)3, explodes, it produces nitrogen, oxygen, water and carbon dioxide. If the heat of the reaction is -5692 kJ/mol,
Find out the amount of energy released by this process of fission of a single U 235 atom and expree your answer in joules?
Question- You have a 1.00 g sample of a hydrate of Na2CO3. By heating the compound, you drive off the water and are left with 0.3704 g of the anhydrous compound. a. What mass of water has been driven off? b. What is the % by mass of Na2CO3 in the ..
use the initial volume of acetic acid the volume of naoh required to reach the equivalence point and the value of the
What mass of sucrose should be combined with 474 g of water to make a solution with an osmotic pressure of 8.20 atm at 310K ?
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