Num balão volumétrico com capacidade 200 mL, dissolveram-se 5 g de dicromato de potássio em água e perfez-se o volume.

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in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong