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Please help and show your work. I need to see where Im going wrong.
1. Calculate the theoretical yield percentage of a reaction between sodium and water, if 25.0 g of sodium react with excess water and if 15.5 L of gaseous hydrogen are collected at NTP conditions.
2. Bromine can be obtained from the decomposition of calcium bromide by means of electrolysis. If 10.0 g of calcium bromide are dissolved in water before electrolysis and if 1.75 L of gaseous bromine is produced at 70 °C and 80 kPa, what is the theoretical yield percentage?
CaBr2 à Ca + Br2
Use the data below to calculate the value of Kc H2(g) 2 H(g) Kc = 0.00473 1/2 H2(g) + 1/2 O2(g) OH Kc = 0.643 Give your answer to 3 significant figures
If 32mL of 7.0M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?
Determine the lime (CaO) and soda ash (Na2CO3) dose, mg/L as CaCO3, to soften the following water to a final hardness of 90.0 mg/L as CaCO3. Assume the lime is 90% pure and the soda ash is 97% pure.
then dried the flask and added some pieces of titanium to it. the stoppered flask plus the titanium weighed 64.763g. then filled the flask w/water, leaving the titanium pieces in the flask, and found a mass of 67.561g for the flask plus titanium a..
Problem- What product results when you dissolve myristic acid in ethanol and mix it with HCl. If possible What would this HNMR look like
A bone sample with 2.8 g of carbon has 17.4 disintegrations per minute. How old is the bone sample in years. What percentage of the atoms of carbon in the biosphere are C-14?
What would the reaction: Bi + excess Cl2 yield? I know Bismuth can only attach to I think 3 chlorides because of the inert pair effect but I guess that's the part I'm unsure about! So would it be BiCl3
At what temperature will 6.21 g of oxygen gas exert a pressure of 5.00 atm in a 10.0-L container
In 1.00 atm of pure oxygen, the solubility of O2(g) in water is 1.26 x 10^-3 M at 25.0 degree C. The mole fraction of oxygen in air is 0.210. If the atmospheric pressure is 0.979 atm, what is the solubility of oxygen in air at 25.0 degree C?
The drying oven, although thought (and assumed) to be set at 125 degrees C, had an insie temperature of 84 degrees C. How will this error affect the reported percent by mass of the limiting reactant in the salt mixture
an element consists of two isotopes. the abunance of one isotope is 60.1 and its atomic mass is 68.9256 u. the atomic
What is the minimum amount of work required to separate 1mol of air at 27°C and 1atm pressure (assumed to be composed of 1/5 O2 and 4/5 N2) into O2 and N2, each at 27°C and 1atm pressure?
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