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Calculate the value of E cell for the following reaction 2Fe2+(aq) + Cd2+(aq) ? 2Fe3+(aq) + Cd(s)
When chromium crystallizes, it forms body-centered cubic cells. The unit cell edge length is 288.7 pm. Calculate the density of chromium
How many grams of Na2CO3 are present in 29.7 mL of a 31.0% Na2CO3 solution. The density of the solution is 1.09 g/mL.
Consider a 2430-lb automobile clocked by law-enforcement radar at a speed of 85.5 mph (miles/hour). If the position of the car is known to within 5.0 feet at the time of the measurement, what is the uncertainty in the velocity of the car?
If 29.58 mL of 0.550 M NaOH is required to titrate the oxalic acid in the 0.554g sample to the equivalence point, what is the weight percent of oxalic acid in the mixture. Oxalic acid and NaOH react according to the equation H2C2O4 (aq) + 2 NaOH(a..
Consider the ring structure of beta-D-glucose. It will give a positive test as a reducing sugar. How can that happen?
A chemist is trying to determine the amount of CaCO3 in an antacid tablet. She dissolves the tablet in water and titrates it with HCl according to the following reaction
Based on your knowledge of the mechanism involved in the nitration of methyl benzoate, what role(s) would you expect sulfuric acid to play in the nitration of benzaldehyde?
determine the empirical and molecular formulas of a hydrocarbon which has a molecular weight of 84 mass unit which contains 85.7% carbon.
An element crystallizes in a face-centered cubic lattice. The edge of the unit cell is 392 pm, and the density of the crystal is 21.45 g/cm3. Calculate the atomic weight of the element (in g/mol)
A gas expands and does P-V work on the surroundings equal to 259 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system?
According to NMR spectra rules, a carbon that is more substituted is more deshielded. For some reason I cannot understand this, because in my mind I see it has more shielding since there is more electron density around it. Please explain in detail..
Sodium methoxide reaction: Pipet 1.65 mL of a 25% (by weight) solution of sodium methoxide in methanol into a 10 mL reaction flask.
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