Question

Que. How many litres of NaCl will be
required to regenerate a zeolite bed which
has capacity of softening 1000 L of water
of 250 mg CaCO3 equivqlent hardness per
litre. Concentration of NaCl = 25,000 ppm
of CaCO3 equivqlent.​

Answer 1

1.for making the text look coloured refer the below syntax and ignore the dots

$\red{the\text\appears\in\red}$

result

\red{the\:text\:appears\:in\:red}thetextappearsinred

2.for making the text marquee

[.tex]<marquee>{the\:text\:appears\:like\:this}</marquee>[./tex]

result

= < marquee > {the\:text\:appears\:like\:this} < /marquee > <marquee>thetextappearslikethis</marquee>

3. for making the text look bold

[.tex]\bold{the\:text\: appears\: like\: this }[./tex]

result =

\bold{the\:text\: appears\: like\: this }thetextappearslikethis

4. for showing the exponential value

[.tex]{no.}^{power}[./tex]

result

= {no.}^{power}[ /tex] 5. for showing the square root value [.tex]\sqrt{no.}[./tex] result = $\sqrt{no.}no. </p><p>power</p><p>$5.forshowingthesquarerootvalue[.tex]

no.

[./tex]result=[tex]

no.

\bold{\boxed{thanx}}

thanx

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