Register
Calcule el peso de cromato sodico, Na2CrO4, necesario para preparar 200g de una disolución al 20% de Na2CrO4
149k views
5 votes
Calcule el peso de cromato sodico, Na2CrO4, necesario para preparar 200g de una disolución al 20% de Na2CrO4

User Lyju I Edwinson
by
4.9k points

1 Answer

1 vote

Answer:

40g de cromato sódico serán necesarios

Step-by-step explanation:

Una solución 20% de Na2CrO4 contiene 20g de Na2CrO4 por cada 100g de solución (Esto es, soluto + solvente). Para preparar 200g de la disolución en mención serán necesarios:

200g solucion * (20g Na2CrO4 / 100g Solución) =

40g de cromato sódico serán necesarios

User Smozgur
by
4.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.4m questions

7.0m answers

Other Questions

What's the formula for the combined gas law?
Which option describes nonmetals?
The ions Ca2+ and PO43- form salt with the formula
At exactly 2:00 PM, speedy the hermit crab crawl onto a meter stick starting at the 10 cm mark. If he reaches the 60 cm mark at exactly 2:10 PM, what is his speed?
The melting points for the second series transition elements increase from 1526˚C for yttrium to 2623˚C for molybdenum and then decrease again to 321˚C for cadmium. Account for this trend in terms of band
Link Copied!