D5w is shorthand for a 5% glucose rehydration fluid used in ivs. the doctor orders 1200 ml d5w@ 30 gtts/min. you have an iv tube that delivers 18 gtts/cc. how many hours will it take for the 1200 cc bottle to infuse?

Gtts means "guttae", drops. Its a latin term.

The speed of D5W should be 30 gtts/min

the IV tube is of 18gtts/mL (or cc)

[cc : cubic centimeter and 1cc = 1mL]

We have to deliver 1200mL

There are 18gtts in one millilitre

or for one mL we need 18gtts

So for 1200mL we need = 18 X 1200 gtts = 21600 gtts

as the speed is 30gtts / minute

so the time taken in minute for 1gtts will be = 1 / 30 minutes

for 21600 gtts time taken in minutes = 21600 / 30 = 720 minutes

60 minutes equals one hour

so time in hours required or taken for infusion of 1200mL = 720 / 60 = 12 hours

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number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.