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A 50.0mL samle of a 1.00M solution of MgSO4 is mixed with 50.0mL of 2.00M NaOH in a calorimeter. The temp of both solutions was 23.2*C before mixing and 29.3*C after mixing. The heat capacity of the calorimeter is 15J/*C. From the data, calculate delta H for the process MgSO4 (aq) + NaOH (aq) -> Mg(OH)2(s) + Na2SO4 (aq)
Assume the specific heat and density of the solution after mixing are the same as those of pure water and that the volumes are additive.
Naturally occuring sulfur consists of four isotopes: 95.0% 32s (31.97207amu); 33s (32.97146amu, 0.76%);
assuming the gases to be ideal answer the following a a vessel contains 7 grams of nitrogen and 11 grams of carbon
A mixture of 1.374 g of H2 and 70.31 g of Br2 is heated in a 2.00-L vessel at 700 K. These substances react as follows: H2 (g) + Br2 (g) ⇔ 2HBr (g) Compute the equilibrium concentrations of H2,Br2, and HBr.
What are the RATE LAW and k VALUE (with units) for the reaction? Assume conc. in moles per liter T or F. Feezer burn involves solid water conversion to vapor then back again.
How could you isolate the R-(+)-alpha-phenylethylamine from the mother liquor that remained after you crystallized and filtered off the S-(-)-alpha-phenylethylamine
You require to prepare a 100mM acetate buffer a pH of 5.5. Use the Henderson-Hasselblach equation to compute the number of moles and grams of sodium acetate (NaCH3COO) and the number of moles and mL of acetic acid (CH3COOH;stock is 16.6 M) require..
From a calibration curve I found a concentration of 11.84 micrograms/mL with a standard deviation of 1.79. I multiplied the concentration by 100 to find the micrograms in the 100mL solution.
How many minutes will it take to electroplate 14.1 g of gold by running 5.00 A of current through a solution of Au2+(aq)
The formulas for ethane, ethene, and ethyne are C2H6, C2H4, and C2H2 respectively. Rank these compounds by the length of the carbon-carbon bond. Longest C-C Bond to Shortest C-C bond
Large quantity of ammonia are burned in the presence of platinum catalyst to give nitric oxide as d first step in the preparation of nitric acid.
an empty vial has a mass of 67.77 g. if the vial has a mass of 244.56 g when completely filled with liquid carbon
A pickle-packing plant produces and discharges a waste brine solution with a salinity of 13,000 mg/L NaCl, at a rate of 400 L/min, discharged into a stream with a flow rate above the discharge of 5 million L/d and a salinity of 20 mg/L
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