Answered

IDNStudy.com, ang iyong gabay para sa maaasahan at mabilis na mga sagot. Alamin ang mga detalyadong sagot mula sa mga bihasang miyembro ng aming komunidad na sumasaklaw sa iba't ibang paksa para sa lahat ng iyong pangangailangan.

A pharmacy intern is aked to prepare 3 L of a 30% solution. The pharmacy stocks the active ingredient in 8-ounce bottles of 70% strength. How many bottles will be needed as the source of the active ingredient?

Sagot :

Answer:

The number of bottles of active ingredients that would be needed will be approximately 6.

1 ounce = 0.0296 liters

8 ounce = 0.0296 x 8

=0.2368 Liters

This means that each stock bottle is 0.2368 liters.

From dilution equation:

Molarity x volume before dilution = molarity x volume after dilution

Before dilution: molarity = 70% w/v, volume = ?

After dilution: molarity = 30% w/v, volume = 3 L

volume before dilution = 30 x 3/70

= 1.286 L

Thus, 1.286 liters of the stock would be needed. Each bottle of the stock is 0.2368 liters. Therefore:

1.286/0.2368

= 5.43

Thus, the number of bottles that would be needed is approximately 6.

Salamat sa iyong pakikilahok. Patuloy na magbahagi ng iyong mga ideya at kasagutan. Sama-sama tayong magpapaunlad ng isang komunidad ng karunungan at pagkatuto. Salamat sa pagbisita sa IDNStudy.com. Nandito kami upang magbigay ng malinaw at tumpak na mga sagot.