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Problem- NH3 is a weak base (Kb = 1.8 Ã- 10â€"5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.076 M in NH4Cl?
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An analysis shows that you need to neutral 3.27 meq/100gof acidity. How much of finely ground pure CaCO3 (in grams) is required to neutralize the acidity of this soil?
when 1.00 g of pure benzoic acidnbsp nbspc7h6o2nbsp is added in 50.0 grams of carbon tetrachloride ccl4 the freezing
If densities were addititive, what should be the density of a 50-50 mixture of propylene glycol and distilled water at 20 degrees Celsius? Note: d^20 = 1.0361 g/mL propylene glycol and d^20 = 0.99821 g/mL distilled water.
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A buffer solution is prepared by mixing 50.0mL of 0.300 M NH3(aq) with 50.0mL of 0.300 M NH4Cl(aq). The pKb of NH3 is 4.74. NH3 + H20 ----> NH4+ + OH-
Complete and balance the following equations, and identify the oxidizing and reducing agents. (Recall that O atoms in hydrogen peroxide, H2O2, have an atypical oxidation state.)
when a 45 g sample of an alloy at 100 c is dropped into 100 g of water a 25c the final temperture is 37 c. what is the
The first point should be at -56.8 degrees Celsius and the last point at 150.0 degrees Celsius. Do not connect the points with a line.
What is the empirical formula of compounds: ethyne (C2H2) and styrene (C8H8). Explain the relationship between ethyne and styrene's empirical formulas and their properties.
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