# equation

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## equation

[e-kwa´zhun]an expression of equality between two parts.

**Henderson-Hasselbalch equation**a formula for calculating the pH of a buffer solution such as blood plasma, pH = p

*K*

_{a}+ log [BA/HA]; [HA] is the concentration of a free weak acid; [BA] the concentration of the ionized form of this acid; p

*K*

_{a}the acid dissociation constant, a measure of the ionization equilibrium of the acid.

## e·qua·tion

(ē-kwā'zhŭn),A statement expressing the equality of two things, usually with the use of mathematical or chemical symbols.

[L.

*aequare,*to make equal]## e·qua·tion

(ĕ-kwā'zhŭn)A statement expressing the equality of two things, usually by means of mathematical or chemical symbols.

[L.

*aequo,*to make equal]## e·qua·tion

(ĕ-kwā'zhŭn)A statement expressing the equality of two things, usually with the use of mathematical or chemical symbols.

[L.

*aequare,*to make equal]## Patient discussion about equation

**Q. how do i determine what is the right weight i need to be? i know there is a way to calculate it, an equation ** , what are the parameters in it ?

**A.**I don't mean to burst any bubbles, but BMI is definitely not a good way to determine what weight you should be. If you considered that a body builder or a professional athlete is considered obese under BMI standards then you would know what I mean. Here is an article about it I found on Medical News Today: http://www.medicalnewstoday.com/articles/49991.php