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Hydrazine, ammonia, and hydrogen azide all contain only nitrogen and hydrogen. The mass of hydrogen that combines with 1.00g of nitrogen for each compound is .144, .216, and .240, respectively. Show how these data illustrate the law of multiple proportions. Apparently, the g H/ g N are in a ratio of 6:9:1. I don't understand how to get that answer. I keep coming up with 1.5, 1.6, etc...
balanced chemical equation for dehydration: k3[Fe(C2O4)3].3H2O --> K3[Fe(C2O4)3] + 3H2O results: weight of container 38.185g, weight of container and hydrated salt:
A cube of osmium metal 1.500cm on a side has a mass of 76.31g at 25°C. Calculate the mass of 0.1500L of benzene at this temperature.
Draw the Lewis Dot Structure for both substances b. Determine the electron pair geometry c. Determine the molecular geometry d. Compare the F - C - F bond angle to the H - S - H bond angle e
Among the elementary subatomic particles of physics is the muon, which decays within a few nanoseconds after formation. The muon has a rest mass 206.8 times that of an electron. Calculate the de Broglie wavelength associated with a muon traveling..
An unknown, rectangular substance measures 3.6 cm high, 4.21 cm long, and 1.17 cm wide. If the mass is 21.3g, what is this substance's density?
How many grams of are CaH2 needed to generate 147L of H2 gas if the pressure of H2 is 827 torr at 20 C?
what is the molecular formula and empirical formula of NH2Cl, molar mass = 51.5 g/mol
A substance, A2B, has the composition by mass of 60% A and 40% B. What is the composition of AB2 by mass?
at 25 C and 1.0 atm, .25 g of a gas dissolves in 1.00L of water. what mass of the gas dissolves in 1.00L of water at 25C and 3.0 atm
Consider the dissolution of MnS in water (Ksp = 3.0 × 10-14). MnS(s) + H2O(l)-> Mn2+(aq) + HS-(aq) + OH-(aq) How is the solubility of manganese(II) sulfide affected by the addition of aqueous potassium hydroxide to the system?
In which state is the average distance between molecules the greatest?, Explain the difference in densities at the two temps in terms of the kinetic molecular theory.
What mass of Mg is formed by passing a current of 5.50 A through molten MgCl2 for 2.80 days?
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