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1. Describe the bonding in a) KSCN, b) Fe(NO3)3, c) and the product of the reaction between a) and b). 2. Write net ionic equations for all positive reactions that take place.
Carbon-14 is a radioactive isotope which decays with a half-life of 5730 years. What is the first-order rate constant for its decay, in units of years^-1
discuss in detail the healthcare applications of chemical reactions. which chemical reactions would you consider to be
The normal melting point of napthalene is 353.05K. When the solution becomes saturated at 310k, we expect the mole fraction of napthalene in the saturated solution.
2HI(g)------H2(g)+I2(g) Kc=0.0200 at 745 K suppose 1.00 mol HI9g) and 1.00 mol H2(g) are placed in a 10.0 L Flask and heated to 745 K. What are the concentration of each substance when equilibrium is reached
The first equivelence point is reached when 24.50 mL of base have been added. What is the molecular weight of the unknown acid?
Calculate the mass of water formed by the complete reaction of 935 g of propane (C3H8) with excess oxygen. (Write a balanced equation)
The sample of 19.2g of KCl is dissolved into a solution with a total volume of 242.0 mL. what is the molarity of the solution
Given the equation: 2Cr(s) + 3H2O(g) = Cr2O3(s) + 3H2(g) How many moles of chromium metal are required to react with 3.17 moles of water
How many moles of O2 are needed to consume 0.52 mol of Mg in the following unbalanced reaction? Mg + O2-> MgO
Propose a structure for a compound A that has an infrared absorption at 1820 cm-1 and a single proton NMR absorption at ? 1.5. Compound A reacts with water to give dimethylmalonic acid and with methanol to give the monomethyl ester of the same aci..
A solution made from 6.50 g of an unkown compound in 27.8 g of diphenyl has a molality of 0.195 m. Calculate the molar mass of the unknown
Calculate (a) the work done when the gas expands isothermally against a constant external pressure of 200 Torr until its volume has increased by 3.6 dm3, and (b) the work that would be done if the same expansion had occurred reversibly.
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