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Suggest chemical reactions that could be used to identify the contents of four unlabeled bottles containing solutions of the following substances: CuSO4, Al2(SO4)3, Pb(NO3)2, and FeSO4.
calculate the minimum energy a photon must have to produce an electron hole pair in an extrinsic semiconductor of band gap 1.3 electron volts.
Calculate delta s for reversibly heating 2.000mol of liquid water from 0.00C to 100.00C at a constant pressure of 1.00atm. the specific heat capacity of liquid water is nearly constant and is equal to 1.00cal/kgm or 4.18j/kgm
When 0.538 g of Neon is added to an 800 cm^3 bulb containing a sample of argon, the total pressure of the gases is found to be 1.17 atm at a temperature of 295 K. Find the mass of the argon in the bulb.
Provide a Lewis structure, including resonance if appropriate, and non zero formal charge, for ICl2-
Explain which distilation method (fractional or simple) would be most appropriate to seperate hexanes and dichloromethane
(a) What conditions are represented by the abbreviation STP. Temperature °C Pressure atm (b) What is the molar volume of an ideal gas at STP
Styrene, phenylethene, is treated with H3PO4, an acid whose conjugate base is a poor nucleophile.
A 1.80 M solution of 56 ml is diluted to a volume of 218 milliliters a portion of that solution of 109 milliliters is diluted using 149 milliliters of H2O. determine the final concentration of this solution
The rate of substitution of alkyl chlorides and alkyl bromides can be increased by adding a catalytic amount of sodium iodide.
Express the concentration of a 0.0860 M aqueous solution of fluoride, F-, in mass percentage and in parts per million (ppm). Assume the density of the solution is 1.00 g/mL.
Suppose y was measured five times and average of these five measurements was 3.24. What is the uncertainty in x based on these five measurements
You are a member of EPA enforcement team investigating the possible ongoing dumping of arsenic in Cavalier Lake. You take water samples from the middle of the lake and find that the concentration is 89.6 ppb. 10 days later you take another sample ..
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