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Calcium carbide, CaC2 reacts with water to form acetylene.
CaC2(s)+2H2O(l) ==> C2H2(g)+ Ca(OH)2(s)
a)how many grams of water are needed to react with 485g of calcium carbide?b)how many grams of CaC2 could make 23.6g C2H2?c)If 55.3 g Ca(OH)2 are formed, how many grams of water reacted?
A buffer is prepared by adding 23.0 g of sodium acetate ( CH3COONa) to 500 ml of a 0.145 M acetic acid ( CH3COOH) solution. A)Determine the ph of the buffer.
What is the pH of a buffer prepared by adding 0.809 of the weak acid HA to 0.305 of NAH in 2.00 L of solution. The dissociation constant Ka of HA is of is (5.66 X 10^{-7})
The classic volcano reaction is often performed by the simple mix of vinegar (CH3COOH) and sodium bicarbonate (NaHCO3) resulting in a large amount of CO2 foam being produced. How many moles and liters of gas would be produced by reacting 55.7 g of..
whats the total pressure generated by a mixture of gases if the pressure of oxygen is 465 mm hg the pressure of
Which element is the central atom? Hydrogen cyanide, Ammonia, Calcium carbonate, Magnesium sulfate
The element gallium has two naturally occurring isotopes with masses of 68.9300 amu and 70.9200 amu. What would be the fractional abundance of the first isotope, if the atomic weight was 69.6518 amu
Explain how these products are produced by showing the mecahnism involved. (draw).
what will be the final temperature in degrees Celsius If the volume of a gas container at 32.0°C changes from 1550 mL to 755 mL,?
How much heat is needed to vaporize 2.42 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
Benzene freezes at 5.5 degrees celcius and the resulting solution freezes at 2.13 degrees celcius. What is the freezing point depression constant of benzene?
Write the expression for the equilibrium constant, Kc, for the following chemical reaction.
100 ml sample of hard water is titrated with the ETDA solution in problem 2. the volume of EDTA required to reach the end point is 22.44 ml
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