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In lab, a student was given a hydrated version of NiCl2 as the unknown. The initial mass of the hydrated salt was 0.894 g. The student heated the crucible for 10 minutes with the cover slightly ajar. After cooling, the dried salt weighed 0.487 g. Based on these results, answer the following questions.
The chemical formula for this hydrate is: NiCl2 x ____ H2O.
The IUPAC name for this hydrate is:
Using this information and the Clausius-Clapyron equation (P = const•exp(-?Hvap/RT)), calculate the vapor pressure of 3 nm droplets of mercury.
What is the pH of pure water at 40 degrees C if the Kw at this temperature is 2.92 x 10 to the -14th
The specific heat of the liquid is 4.7 J/g.K and the specific heat of the vapor is 2.2 J/g.K. its enthalpy of vaporization is 25.1 kJ/mol. If you heat 4.6 kg of liquid ammonia from -62.0 degrees C to its boiling point of -33.6 degrees C, and then ..
Products is second order with a rate constant of 0.469 M-1s-1. If the initial concentration of A is 0.159 M, how many seconds would it take for the concentration of A to decrease to 5.12 * 10-3 mol/L?
Why is methyl m-nitrobenzoate formed in the nitration of methyl benzoate instead of o- and p- What product would you expect if methyl benzoate underwent dinitration
Problem- If 26.00g of calcium hydrogen carbonate react with 430.0ml of 0.742M nitric acid, what volume of carbon dioxide is produced ar 742torr and 12°C?
The formal charge on the P atom is zero and It is best described with three resonance structures.
consider the following reaction.h2nbspg 2co g --gt h2o2nbspl 2c s nbsp nbspdeltah33.3 kjcalculate the enthalpy change
Explain the Coordination Chemistry and Chemical Speciation Utilized in the Analysis of Fluoride in Water Samples by Fluoride Ion-Selective Electrode
Dr. Brown has a radioisotope source containing 1.2 x 106 (also written as 1.2E+06) atoms of Plutonium-238 in 1985, how many atoms will remain in 352 years
The isotope, Cesium 137, has a half life of 30 years. Cesium-137 is a produced in nuclear power plants. We currently find high levels of Cs-137 in the area surrounding the highly radioactive reactor in Japan.
An aerosol can has a gas pressure of 144 kPa at 293 K. Calculate the pressure when the can is heated to 425 K.
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