Seudónimo Seudónimo

23-03-2022
Chemistry

contestada

Find the weight of sodium hydroxide needed to form a 1M solution of 500 mL.

Respuesta :

Аноним Аноним

23-03-2022

[tex]\\ \rm\Rrightarrow Molarity=\dfrac{Moles\:of\:solute}{Volume\:of\: solution \:in\:L}[/tex]

[tex]\\ \rm\Rrightarrow 1=\dfrac{n}{0.5}[/tex]

[tex]\\ \rm\Rrightarrow n=0.5mol[/tex]

Molar mass of NaOH=23+16+1=40u

[tex]\\ \rm\Rrightarrow n=\dfrac{Given\:mass}{Molar\:mass}[/tex]

[tex]\\ \rm\Rrightarrow 0.5=\dfrac{Given\:mass}{40}[/tex]

[tex]\\ \rm\Rrightarrow Given\:mass=40(0.5)=20g[/tex]

Answer Link

Otras preguntas

which property should be used next in this solution process 3x+2+3=7(x-1)-4

Two fifths the cube of a number

write the equation a. a vertical line that passes through the point (2,-6)b. the y axis c. a horizontal line that passes through the point (1,4)d. the x axis

a giraffe can run about 14 meters per second find its speed in miles per hour

What is 3,649x7 in distributive property form?

which property should be used next in this solution process 3x+2+3=7(x-1)-4

Which answer is closest to the true value of the expression: (9.1 x 10⁴)(1.1 x10^{-5})(log10^{-13})(1000) (a) 1.3 (b) 13000 (c) -13000 (d) 1.3 x 10^{-11} Can

Which of the following is a sign of inflammation? a. bruising b. swelling c. numbness d. temperature decrease

write the equation a. a line with slope 2/3 that passes through the point (-3,6)b. a line that passes through the points (3,-1)and (5,7)

Two fifths the cube of a number