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Problem- Upon decomposition, one sample of magnesium fluoride produced 1.64kg of magnesium and 2.58kg of fluorine. A second sample produced 1.24kg of magnesium.
How much fluorine (in grams) did the second sample produce?
Show all work, use additional paper if necessary.
An equilibrium mixture of SO2,O2 and SO3 gases at 1500k is determined to consist of 0.244 mol/L SO2, 0.172 mol/L O2 and 0.56 mol/L SO3.
The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transiytion state theor is valid
After filtering off this precipitate, the pH is adjusted to 8 and H2S is again added; no precipitate forms. No precipitate forms upon addition of (NH4)2HPO4. The remaining solution shows a yellow color in a flame test. Based on these observations,..
Categorize each phrase below as being relevant to ionic bonding, covalent bonding or metallic bonding. 1. electron transfer 2. Nonmetal with nonmetal 3. Alloy 4. separate molecules 5. metal with metal 6
write the reaction that occurs when ammonia and acetic acid are mixed. b. Although ammonia and acetic acid are weak electrolytes, a mixture of these two solutions behaves as a strong electrolyte.
A certain compound is a white solid with a melting point of about 780 deg C. When it melts it conducts electricity.a) What type of solid is this?b) In which solvent is it likely to be more soluble, water or CCl4. Explain.
consider reduction of the following cobalt complexes conh35l3 l pyridine i nc5h4-p-ch2nh2 ii nc5h4-p-conh2 iii by
Carboxylic acids and phenols can be separated by chemically active extraction if the pH of the aqueous layer is properly chosen. Phenols are sufficiently acidic to be extracted into aqueous sodium hydroxide
What is the smallest amount of CuO (in moles) that would establish the equilibrium?
The solubility product of PbBr2 is 8.9 10-6. Determine the molar solubility in the following. (a) pure water
a solution of 0.64 grams of adrenaline in 36.0 grams of CCl4 elevates the boiling point by 0.49 celsius. what is the molar mass of adrenaline?
Ribonuclease P proteins RPP21 and RPP29 bind one another during complex assembly. Thermodynamic measurements reveal that ΔH° = -66.3 kJ/mol and ΔS° = -73.2 J/mole*K at 40°C. What is the equilibrium constant for the binding reaction at 40°C?
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