Discuss why btb is green in the neutral water solution
Discuss why BTB is green in the neutral water solution. In terms of Le Chatelier's principle, why does it turn blue when base is added and yellow when acid is added?
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Determine the percentage of chloride in the original sample when a silver chloride precipitate weighing the 0.2255 grams was obtained from the 0.3448 grams of a soluble salt mixture.
Explain why is the given situation not possible? The centers of two homogeneous spheres are 1 m away from each other. The spheres are made up of the similar element from the periodic table. The gravitational force among the spheres is 1 N.
Calculate the percentage of iron in a 3.0660 gram sample of an acid-soluble iron ore which yields a ferric oxide (Fe2O3) precipitate weighing the 2.0513grams?
Determine what volume the dry gas occupy at standard conditions. Sixty litters of a gas were collated over water when the barometer read 670 mmHg, and the temperature was 20C.
A step-down transformer which transforms 120V ac to 10.0V AC (rms values), and the secondary winding is joined to a purely resistive circuit containing an equivalent resistance of around 2.00O. i) Write down the output rms current to the circuit?
Calculate the initial pH before the titration has begun when a 100.0 mL sample of 0.200 M methylamine, CH3NH2, is titrated with the 0.100 M HCl.
A sample which is having 100.0 mL of 200.0 M methylamine, CH3NH2, is titrated with the 0.100 M HCl. Determine the pH at the equivalence point. Will the solution be BASIC, ACIDIC, or NEUTRAL?
Do these data point out that proportion of dog owners owning more than one dog has reduced? Employ a 5% level of significance. Determine the P value or an interval containing the P value for the sample test statistic.
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