Explain at what ph will bromothymo blue change color
Explain at what pH will bromothymo blue change color? What does the selection of this indicator tell you about the probable Ka of KHP?
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What is the molar mass if there are four iron atoms per molecule? A sample of hemoglobin is found to be 0.335% iron. If hemoglobin contains one iron atom per molecule, what is the molar mass of the hemoglobin?
Ask your classmates for their individual grooming time per day (unless you're an 8:00am class), and use the data to estimate the true mean grooming time for your school with 95% confidence.
Write reduction and oxidation, half reaction equations as well as the net reaction equation, to explain the empirical of magnesium chloride. The empirically determined chemical formula for magnesium chloride is MgCl2.
Illustrate a Newman projection of a confirmation of 2-bromo-1-chloropropane (viewing along the carbon-carbon bond among the first and second carbon atoms) in which the two halogens are as far apart as possible.
Determine the equivalent mass of the acid if is found that 24.68 mL of .1165 M NaOH is required to titrate .2931 g of an unknown acid to the phenolphthalein end point.
Determine the molarity of a solution of sodium hydroxide, NaOH, if 23.64 mL is required to neutralize the .5632 g of potassium hydrogen phthalate.
Discuss what the reaction is and how the initial precipitate is dissolved and reprecipitated. Use equations in your explanation.
If four apartments are selected at random to be redecorated, find probabilities that (i) All will be two-bedroom apartments? And (ii) 2 will be 2-bedroom apartments and two will be 3-bedroom apartments?
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