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For this reaction calculate how many grams of the product form when 1.6g of Na2O completely reacts. Assume that there is more than enough of the other reactant. Na2O (s) + H2o (l) ----->2NaOH (aq).
1.how doesthe density ofa gasdepend on temperature?pressure? how doesit depend on the molar massof the gas?2.what is
a 10.000-g sample of toothpaste containing stannous flouride gives a 0.145-g precipitate of stannous phosphate. What is the percentage of SnF2 in the toothpaste sample?
Enough of a monoprotic acid is dissolved in water to produce a 0.0126 M solution. The pH of the resulting solution is 6.38. calculate the Ka for the acid
A particular smoke detector contains 2.85uCi of 241Am , with a half-life of 458 years . The isotope is encased in a thin aluminum container. Calculate the mass of 241Am in grams in the detector. detector.
A 1.90 gram sample of a salt dissolves in 9.10 g of water to give a saturated solution at 21 Celsius
The mole fraction of water in the product gas is monitored and found to have the value calculated in part (a) for the first 10hours of operation, but then it begins to increase. What is the most likely cause of the increase? If the process continu..
A hydrogen atom in an excited state emits a photon of frequency ? = 2.924 x 1015 s-1. If the electron returns to the ground state, in which level was it before the photon was emitted
If you have a 2.55 mM solution of acetone in 50.0 mL of cyclohexane, what is the concentration of this solution in ppm
Problem- Consider how the I-Cl bond is polarized and predict the product which results when this mixed halogen adds to 1-methylcyclohexene. Include relevant region- and/or stereochemistry in your product's structure.
Calculate the value of the equilibrium constant at 298 K for the reaction: Sn(s) + Sn4+(aq) 2 Sn2+(aq).
600 torr contains 50.0% Helium and 50.0% Xenon by mass. What are the partial pressures of the individual gasses?
What is the "mass per volume" percent of a household bleach product? I believe the question is asking for a calculation but I do not know how to proceed
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