contestada

Consider this question: What mass of concentrated solution nitric acid( 68.0% HNO3 by mass) is needed to prepare 400.0 g of a 10.0% solution of HNO3 by mass?
(a) Outline the steps necessary to answer the question
(b) Answer the question

Respuesta :

Answer: The mass of concentrated nitric acid solution required is 58.82 g

Explanation:

To calculate the mass of concentrated solution, we use the equation:

[tex]c_1m_1=c_2m_2[/tex]

where,

[tex]c_1\text{ and }m_1[/tex] are the concentration and mass of concentrated solution.

[tex]c_2\text{ and }m_2[/tex] are the concentration and mass of diluted solution.

We are given:

[tex]c_1=68\%\\m_1=?g\\c_2=10\%\\m_2=400g[/tex]

Putting values in above equation, we get:

[tex]68\times m_1=10\times 400\\\\m_1=58.82g[/tex]

Hence, the mass of concentrated nitric acid solution required is 58.82 g

Otras preguntas