What is molarity and molailty of the solution
An aqueous KNO3 solution is made using 87.6g of KNO3 diluted to a total solution volume of 1.33L. Density of the solution is 1.05 g/mol. What is its molarity of the solution? molailty of the solution? and mass percent of the solution?
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Calculate the potential developed by a voltaic cell using the following reaction if all dissolved species are 0.025 M: 2 Fe2+ (aq) + H2O2 (aq) + 2 H+ (aq) ? 2 Fe3+ (aq) + 2 H2O (l)
A gas cylinder with a movable piston initially contains .25 moles of neon in a 5 L. If .5 moles of helium are added to this gas cylinder, what will be the final volume
You and a classmate were each given a yellow unknown with a melting point of 110 degrees Celsius. You both ran a TLC on it using ethyl acetate solvent as the mobile phase.
Calculate the volume of a sample gas at 5.75 atm if it occupies 5.61 L at 2.18 atm. (Assume constant temperature.)
If the solubility producet Ksp for silver phosphate is 1.8x10^-18, what is the molar solubility of silver phosphate in water at the same temperature
What is the estimated value of the Faraday using the values for: a.) the electrode that gains silver? b.) the electrode that loses silver
Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.50 M B(aq) with 0.50 M HCl(aq)
1) What volume (mL) of Hydrogen gas, saturated with water vapor, will be obtained from a 0.1138g sample of alloy which is 73.2 percent Al? (Pbar=754.3 torr, T=21.2deg C) Show your work. 2) What volume (in mL) will the dry hydrogen gas from questio
Question: A titration is performed in which 50.0 mL of 0.0500 M HCl (aq) is titrated with 0.1000 M NaOH. Calculate the pH (a) at the beginning of the titration (Vb = 0);
Phosphorylation can also serve to activate or inactivate specific enzymes. Give an example of one amino acid that can be phosphorylated and suggest at least two ways that phosphorylation could control the activity of an enzyme.
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