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When an ion-selective electrode for X was immersed in 0.0490 M XCl, the measured potential was 0.0410 V. What is the concentration of X when the potential is 0.0560 V? Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
Calculate the mass of silver chloride required to plate 215 mg of pure silver if silver chloride contains 75.27% Ag.
Calculate the following to determine Kc for FeSCN2+. a,) moles Fe3+ initially present. b.) moles SCN- initially present
Ammonia reacts with nitrogen monoxide to produce nitrogen gas and water vapor. If .240 moles of ammonia react, how many moles of nitrogen monoxide will be consumed?
If an unknown crystalline organic compound has a heat of melting that is 8.605 kJ/mole and a melting point of 250.6 C
How many grams of zinc are there in 22.7 g of ZnCl2?
If 92.00 grams of zinc combines with 58.00 grams of HCl how many grams of ZnCl2 are produced?
Calculate the k value associated with the reaction at 25 degrees celcius given the Gibbs free energy of formation of N2H4 is -419.15Kj/mol
A 335 mL can of soda pop is found to contain 41 g of sucrose. What is the molarity of the solution with respect to sucrose?
The resultant mixture is then evaporated in a kettle to produce a jam contain- ing 67 wt % soluble solids. For a feed of 1000 kg crushed fruit, calculate the kg mix- ture from the mixer, kg water evaporated, and kg jam produced
Suppose you add 4.25 g of naphthalene, C10H8, to 67.9 g of benzene, C6H6, and they form an ideal solution. The vapor pressure of pure benzene is 0.1252 atm at the temperature of the experiment.
empirical formula for 2.80 g nitrogen and 8.00 g oxygen. what is the molecular formula empirical formula of NH2Cl, molar mass = 51.5 g/mol
how many molecules of oxygen gas are needed to react with 4.2 moles of C3H8O?
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