Answer:
La concentración mencionada en el ejercicio es de:
- 2.8 x
g/mL de Na2SO4
Explanation:
Ya que el ejercicio te solicita una respuesta en g/mL, debes colocar los datos previamente en esas unidades para evitar contratiempos, quiero decir, el peso de Na2SO4 en gramos y el volumen del agua destilada en mililitros, como el agua ya está en dicha unidad, procedemos a convertir los miligramos del ejercicio a gramos, sabiendo que:
Hacemos una regla de tres simple:
Cancelamos unidades y obtenemos:

- 0.7 g
Con las unidades adecuadas, utilizamos la fórmula de concentración:
- Concentración = masa del soluto / volumen de solvente
- Concentración = 0.7 g / 250 mL
- <u>Concentración = 0.0028 g/mL de Na2SO4</u>
En notación científica sería:
- Concentración = 2.8 x
g/mL de Na2SO4
Answer:C: the number of the noun
Explanation:
When we use possessive adjectives like tu, tus, mis etc we are matching them with the number of the noun, plural or not, example,
"Tus calcetines"
TUS is a plural possesive adjective and calcetines is the plural noun of calcetin
"TU calcetin"
TU is singular, and calcetin is a singular noun
How como is how in inglish
I am mexican that is how I know
Answer:
As regards Mexican culture and country, there might be a lot of things to take into account. For example, they have a wide variety of food that are worth to try. Such as tacos, fajitas and burritos. then, you can have some typical drinks like Margaritas (alcohol drink).
their clothes are full of colours, you can try on a Mexican hat which are presented in different sizes.
You might also enjoy some music. Mariachis are the most tradicional singers and musician. They can sing you "serenatas" in the street.