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A mixture of NaCl and sucrose (C12H22O11) of combined mass 10.2 g is dissolved in enough water to make up a 250 mL solution. The osmotic pressure of the solution is 6.25 atm at 23°C. Calculate the mass percent of NaCl in the mixture.
a 0.355 g sample of a solid monopractic acid having a molecular weight of 12gmol requires 18.47 ml naoh for
Nitrogen monofluoride, NF, can serve as a ligand in transition-metal complexes. a. Prepare a molecule orbital energy-level diagram of the NF molecule, showing clearly how the atomic orbitals interact.
Calculate the molar Gibbs free energy (in kJ) of mixing 5moles of He(g) with 10moles of H2(g). The separate gases and the gas mixture are all at a pressure of 1 bar and at a temperature of 36oC.
What mass of H2 forms if 12 grams of Zn reacts with 7 grams of HCl?
suppose that the 0.00200 m feno33 and kscn solutions were only 0.00100 m. when mixed together as descripbed in the
An aqueous solution of 10.0 grams of sodium hydroxide is mixed with an aqueous solution of 10.0 grams iron (III) chloride: 1) What is the formula of the compound that precipitates
A sample of vinegar (dilute acetic acid) weighing 5.056 g is titrated with 30.25 mL of 0.1022 M NaOH. What is the weight percent of acetic acid (CH3COOH) in the sample
The concentration of a commercially available concentrated nitric acid is 70.0 percent by mass, or 15.9 M. In 100 grams of solution there are 1.11 mol of HNO3. Calculate the VOLUME of 100 grams of the solution
3.0 l of he gas at 5.6 atm pressure and 25 degrees celcius and 4.5 l of ne gas at 3.6 atm and 25 degrees celcius are
0.050 mol of K2HPO4 was dissolved in about 800mL of water, as well as the pH was adjusted to 7.0 using a standardized pH meter and a 1 M H3PO4 solution, followed by addition of water to a volume of 1.00 L. Show that 22mL of 1 M H3PO4 solution were..
If a pure R isomer has a specific rotation of -133.0°, and a sample contains 64.0% of the R isomer and 36.0% of its enantiomer, what is the observed specific rotation of the mixture
1) Write and balance the full chemical equation for the reaction between lead (II) nitrate and manganese (lV) chloride
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