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CaC2 + 2H2O --> C2H2 + Ca(OH)2. Using this equation, determine how many moles of CaC2 are needed to react completely with 49 g H2O?
A 4.80 g nugget of pure gold absorbed 288 J of heat. What was the final temperature of the gold if the initial temperature was 26.0°C.
Calculate the probability of finding an electron that is described by this wavefunction in a volume of 1.0 pm3 (i) centred on the nucleus.
When 2-chloro-2-methylbutane is treated with a variety of strong bases, the products always seem contain two isomers (A and B) of formula C5H10.
What is the atomic radius of each atom that composes it If the length of a face centered cubic unit cell is 0.200 nm,?
What is the best and easy way to determine the frequency (in hz) of the interacting photon. A photon interacts with a ground state electron in a hydrogen atom and is absorbed.
O2(g) + 4 HCl(g) → 2 H2O(l) + 2 Cl2(g) When 64.5 g of HCl are allowed to react with 17.6 g of O2, what is the theoretical yield of Cl2(g) in this reaction.
A vinegar sample contained 5.20 % acetic acid. How may mL of 0.450 N sodium hydroxide would be required to titrate 25.00 mL of the vinegar sample
Determine what would the pressure be if the volume of this sample gas is decreased to 5.38 Litre also state that which law of gas is used in this process?
When relatively small amounts of magnesium burns, the fires are extinguished using commercially available dry powder. Why might this fire rekindle days later as someone tries to remove the residue with water?
determine the concentration of O3 in air sample (in ppm)If 10,000 Litres of air bubbled through iodide solution and back titrated with 19.4 mL of a 1.2x10-4 M Sodium thiosulfate, also spelled sodium thiosulphate solution to reach equivalence,?
CO(g) + 2H2(g) = CH3OH(g) , what is the equilibrium constant? , where CH3OH = 0.0412 atm, H2 = 0.274 atm, CO = 0.914 atm.
A mixture of twenty five grams of potassium nitrate(KNO3) and two grams of CuSO4*5H20 with 11.5 grams of water at 100 degree celcius temperature, 15 g ramsof water are mixed.
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