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Copper (II) sulfate dissolve sin water to form a blue solution. What species are present in the solution, ie, what is actually swimming around in the solution? Write the formulas.
If 35.27 g of sodium carbonate react completely, how many grams of H2O will be produced?
Microwave ovens emit microwave energy with a wavelength of 12.6 cm. What is the energy of exactly one photon of this microwave radiation
All numerical answers must be reported to the correct number of significant figures. What volume of 1.000 M LiCl must be diluted with water to prepare 250.0 mL of 0.100 M LiCl
Write the net ionic equation for the reaction between aqueous solutions of calcium chloride and sodium carbonate.
A mixture of nitrogen and liquid ethanol in a closed constant-volume container has a partial pressure of 101 mm Hg of nitrogen and 66.2 mmHg ethanol at 27 C (300 K)
What is the freezing point of a solution prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water?
a 1.70-g sample of a large biomolecule was dissolved in 14.0 g of carbon tetrachloride. the boiling point of this
A 2.5-g sample of a small protein having a molecular weight of 52,000 g/mol is dissolved in 57.6 mL of water. Calculate the osmotic pressure of the solution in millimeters of mercury at a temperature of 24°C.
what will be the temperature of the system when equilibrium is established? (sp Heat of H2O(s) = 2.09j/g . c (sp heat of H2O (l) = 4.18 J/g.c) Heat of Fus. of H2O(s)=333j/g
The mass of the crucible, cover and sample of Ti was 36.383 g. Following the reaction of the Ti metal with Oxygen, the contents of the crucible, cover and reaction mixture was heated to a constant mass of 37.472 g. Determine the mass of the oxide ..
What is the value of Kf for acetic acid, given that its freezing temperature is 16.6 C and its density is 1.049 g/mL? Experiments show that a solution prepared by dissolving 5.00 grams of water
Identify the reagents for all three steps. Draw the structures of organic compounds A and B.
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