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Calculate Hrxn for the reaction below. Ca(s) + 1/2 O2(g) + CO2(g) CaCO3(s) You are given the following set of reactions. Ca(s) + 1/2 O2(g) CaO(s) H = -635.1 kJ CaCO3(s) CaO(s) + CO2(g) H = 178.3 kJ kJ?
Can anyone help post a separation scheme for eugenol from cloves using steam distillation first and then extraction
Ammonium sulfide in solid form decomposes to ammonia gas and hydrogen sulfide gas. It is a reversible reaction The Kp at 25 degrees C is .109 In an experiment Ammonia gas and hydrogen sulfide gas each have a partial pressure of .5 atmospheres and ..
a solution is made from mixing compounds A, mole fraction 0.5833, and B mole fraction 0.417. the vapor pressure of A at 55c is 95 mmHg and the vapor pressure of B at the same temperature is 42 mmHg
What would be the initial rate of formation of I3 (in units of M/s) when the following initial concentrations were used
What would be the structure and name of the open chain hydroxyl/carbonyl compund from which the above hemiacetal might form
Suppose that 100.0 mL of a 0.120 M solution of magnesium chloride is mixed with 100.0 mL of .210M sodium hydroxide. Assume that the volumes are additive (which is only approx correct) and calculate the molarity of the chloride ion in the final sol..
A student wants to prepare a dilute solution of iron (III) solution, . The student is provided with a stock solution of 0.800 +/- 0.001 M and a 100.00 +/- 0.008 mL volume trick flask since the experiment trquires about 80 mL of the dilute iron (II..
Calculate the capacity factor for decane on HP-1 column (25 m length, 0.25 mm I.D., 0.5 mkm film thickness) at 120 C. Explain.
maleic anhydride gives a compound A that undergoes acid-catalyzed dehydration to give 3,6-dimethylphthalic anhydride.
Metal A was determined to be 95% extracted into methylene chloride with dethizone at pH6, when equal volumes of aqueous and non-aqueous solvents were used. what is the distribution ratio of A
If 1.50 g of X reacts with 3.54 g of M to produce 4.22 g of a compound with the formula M4X3, and the atomic mass of M is 48.5 amu.
The temperature in the laboratory was 23°C and the barometric pressure was 621. mm Hg. You will need to look up vapor pressure of water at that temperature. Find the equivalent mass of this metal.
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