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Find the number of moles of water that can be formed if you have 218 of hydrogen gas and 104 of oxygen gas. Express your answer with the appropriate units.
A certain first-order reaction () has a rate constant of 6.90×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
a student dispensed 82mL sodium hydroxide(titrant) into the lemon juice(analyte) before the end point was reached. Estimate the analyte concentration, assuming that the acid in the lemon juice is monoprotic.
The figure shows (R,R)-1-ethyl-2-methylcyclohexane in one of its chair conformations. Draw the same compound in its other chair conformation. Follow this procedure.
Calculate the concentrations of all species in a 0.225 M solution of phenylammonium chloride, C6H5NH3Cl.
What will be the new freezing point of a solution made from 30.0g of a nonelectrolyte solute and 400g of water? ( the molar mass of the solute is 72.0g)
Table salt is comprised of sodium (symbol Na) and chlorine (symbol Cl) in a simple one to one ratio. It is written in chemical shorthand as NaCl. How would you go about finding approximately how much salt there is in our body?
The heat capactiy of the calorimeter is 1630 J/degrees celsius, and the inital temperature was 24.58 degrees celsius. What was the final temperature in degrees celsius?
If 18.08 grams of ammonia (NH3) react, how many grams of water should theoretically be produced?
Explain why the in phase vibration is located at a higher frequence than the out of phase stretch in the case of acetylene.
Calculate the standard potential for this cell at 25 °C. Standard reduction potentials can be found here.
At a certain temperature, the root mean square speed of CH4 molecules is 1610 km/h. what is the root mean square speed of CO2 molecules at the same temperature ?
Calculate the molar mass of a nonelectrolyte that lowers the freezing point of 25.00 g of water to -3.9 degrees Celsius when 4.27 g of the substance is dissolved in the water.
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