How can estimate the ph of a solution
How can estimate the pH of a solution that is prepared by adding the 19.3grams of sodium nitrite (NaNO2) to 500 mL of 0.1 M nitrous acid (HNO2 , Ka = 4.5× 10-4). Suppose there is no change in volume of solution.
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Determine the minimum value for ΔS (in K/Jmol) for the reaction when a certain reaction is spontaneous at the 314K if the entropy change for the reaction is 19 kJ. Mol.
How can write down balanced chemical equations for the oxidations of sulfur, carbon and the silicon in the converter by using the lowest possible coefficients, omit the states-of-matter in your answer.
Determine the numbers of total electrons could you get in the ROW 9? A little confused on this question and even how to start it because it seems so simple but hard.
Discuss what volume of this acid is neutralized by an antacid tablet that weighs 330 mg and contains 41.0 % Mg(OH)2, 36.2% NaHCO3 and 22.8 % NaCl by mass?
The pH of 0.5 M benzoic acid, C6H5COOH, is 2.24. Estimate the difference in pH when the 4.25 g ofC6H5COONa is added to 392.8 mL of 0.50 M benzoic acid. Where the Ka value for C6H5COOH is 6.5 x10-5.
If the standard deviation of the income of US households is $20k, what would be the sample size which the sampling error (the standard deviation of sampling distribution of the sample mean) is $2k?
State total cost of installation as function of x. (you may like select toanswer part (c) before part (b) if you would like to analyze concrete instances before creating equation.)
Describe the wavelength and the frequency of light emitted when an electron changes from n=4 to n=3 in the Haltom and discuss in what region of the spectrum is this radiation found?
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