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which of the following ionic compounds are soluble in water and which are insoluble: a)KCl. b)MgSO4. c)CuS. d)AgNO3. e)Ca(OH)2
0.10 gram sample of a gas occupies 47 ml of vol at 25 deg C and 755 mm Hg. What's the FW of the compound?
In what type of material is the energy gap between the valence and the conduction band the greatest? Na, Ge or diamond. Draw a rough energy band showing the valence
State three acids, bases, and salts used in therapeutic processes. Describe how one of each is used in therapeutic processes.
Calculate the heat energy released when 19.6 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point.
One method used to store energy during times of low demand is by pumping water uphill into a reservoir. When energy demand exceeds the output produced by power plants
Based on the procedure that you used in this experiment and using the same molar quantaties of reactants, develop a procedure that would be suitable for the preparation of isobutyl propionate.
Identify the two important classes of catalysts. Analyze the chemical reactions that take place when a biological catalyst combines with a reactant (substrate) to form an unstable intermediate.
Calculatethe number of grams of alcohol present in 1.00L of 75 proof gin The density of ethanol is 0.798g/mL.
2.0 mL ethanol with 1.0 mL ethylene glycol (HOCH2CH2OH) calculate the theoretical vapor pressure at room temperature for the solution above. using raoults law
Calculate the molar solubility of FeCO3 . How many grams of FeCO3 are present in 15.0 L of a saturated solution.
sample of an unknown was dissolved in 10.7 g acetic acid. If the freezing point depression of the solution was 4.14°C, find the molar mass of the unknown
A voltaic cell is prepared in which aluminum metal is oxidized to Al3+, and nickel(II) is reduced to nickel metal. Which of the following represents the correctly balanced equation for this reaction
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