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A sample of nitrogen occupies a volume of 546 mL at STP.What volume would nitrogen occupy at 177C under a pressure of 380 torr?
3 isotopes of argon occur in nature. Ar-36, Ar-38, and Ar-40. The abundance of each are as follow: 0.34%, 0.07%, and 99.59%.
Conversion of aqueous formaldehyde to methylene glycol? Assuming that you have formaldehyde, CH2O, fully solubilized in water at a temperature of 200 degrees F, is the first order and natural reaction
121 cal of heat are added to 50.0 g of water initially at 15.0 (degrees celsius). What is the final temperature of the water.
Light with a frequency of 7.11 x 10 -14 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light? Answer in units of nm.
In which compound does sulfur have the highest oxidation number a)Na2S2O3 b)NaHS c)H2S d)KHSO3 e) CuSO4
Molecular formula of a compound and Deduce from these data the corresponding equation and write formulas for the oxide and sulfate of M .
what are the concentrations of each component If a 10.00L vessel has 2.50 mol CO 2 and H 2 O, and 5.00 mol CO 2 and H 2 gas at 588°K, (Kc = 31.4 at 588°K), at equilibrium?
Chloral hydrate, a sedative, contains C 14.52%, H 1.83%, Cl 64.30%, and O 19.35%. If it has a molar mass of 165.42 g, what is the molecular formula of chloral hydrate?
Calculate the equilibrium value of Pb+2(aq) in 1.00 L of saturated PbCl2 solution to which 0.250 moles of NaCl(s) has been added. Assume that no volume change occurs.
Aldol condensation: why must aldehyde contain none of corresponding acid? In the aldol condensation with benzaldehyde + acetone (NaOH, ethanol) --> dibenzalacetone
Consider the reaction: 2 K(s) + 2 H2O(l) -> 2 KOH(aq) + H2(g), DH = ? The heat released when 24.9g of K reacts with excess water is 124 kJ. Determine the enthalpy change, DH, for the above equation as written
what volume will a 300.0 mL sample of gas at STP occupy when the pressure is doubled at constant temperature
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