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How many grams of NaCl are needed to prepare 250 mL of an isotonic saline solution with a concentration of .90% , assuming a solution density of 1.0g/mL?
Calculate the solubility of calcium oxalate in plain water and the concentrations of calcium and oxalate ions in a 0.010 M Ca(NO3)2 solution
A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25 Celcius. The concentration of Cu2+ in one of the half cells is 1.5 * 10-3 M. what is the concentration of Cu2+ in the other half cell?
What is the theoretical yield (in mol) of carbon monoxide when 2.62 mol oxygen reacts with 2.08 mol of ethanol (CH3CH2OH) to produce carbon monoxide and water
a saline solution contains 150 mEq/L each of Na+ and Cl- how many moles of Na+ and Cl- are in 2.50L of the solution
Determine How much sodium hydroxide (in grams) is required to form 546 mL of solution with a pH of 10.00?
Now you find yourself on an airplane headed for Israel to visit the Dead Sea, which is below sea level. You have always wanted to visit there and now is your chance. What has happened to the atmospheric pressure?
the chromatographic paper in the spot testing chromatogram. predict the effect of this procedural change on the solution of the cation in the standard mixture
Balanced equations for the reaction of resorcinol in water, resorcinol in toluene, and resorcinol in hexanes. Balanced equations for the reaction of anthracene in the same three solvents.
Consider the fusion of boron 10 with an alpha particle. The products of the fusion are carbon and a proton. a) Write a nuclear reaction for this process.
Which stage of ionization usually produces more ions and why?
Calculate the molar mass of the biomolecule. For carbon tetrachloride, the boiling point constant is 5.03°C · kg/mol, and the boiling point of pure carbon tetrachloride is 76.50°C.
How many grams of liquid sodium (minimum) are needed to absorb 4.70 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C?
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