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?A 0.158 g sample of a compound containing the elements carbon, hydrogen, oxygen, and sulphur was burned completely, yielding 0.110 g CO2 and 0.0677 g H2O. In a separate experiment, all the sulphur in another 0.158 g sample was converted to 0.292 g of BaSO4. What is the empirical formula of the unknown compound?
Write molecular, total ionic, and net ionic equations for the reaction of AgNO3 and NaCl (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.)
A certain substance has a heat of vaporization of 29.00 kj/mol. At what Kelvin temperature will the vapor pressure be 3 times highe
Why is it possible to add up different balanced chemical equations to form a particular chemical equation and calculate its Kc from multiplying the Kc values of the different equations?
How many coulombs are required?
determine the freezing point depression, delta Tf, for the ionic solution. b. determine m effective for ionic solution. c. determine the van't Hoff factor, i, for the ionic compound.
Suggest a way to determine the correct amount of acid in the food sample. Assume that the indicator works equally well in either direction.
Question- Vapor volume of 1.23L forms when a sample of liquid acetonitrile, CH3CN absorbs 1.00 kJ of heat at its normal boiling point (81.6 and 1 atm).
a barometer is used to measure atmospheric pressure contains mercury with a density of 13590 kgm3 . if the local
a) If one of the electrodes is Al (suspended in a 1 M Al3+ solution), and the volt meter reads 2.00 volts, what is the identity of the other solid metal electrode
How many grams of NaH2PO4 are needed to react with 43.74 mL of 0.285 M NaOH by the following reaction- NaH2PO4(s) + 2 NaOH(aq) --> Na3PO4(aq) + 2 H2O(l)
Arrange the following 0.1 M solutions in order of increasing conductivity and explain why you chose this order: 0.1 M FeCl3, 0.1 M MgCl2, 0.1 M NaCl, 0.1 M glucose (C6H1206)
When14.4 g of the salicylic acid is reacted with excess acetic anhydride, 6.26 g of aspirin is formed.
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