I believe its 2-3 oz. I'm not all that sure but after a bit a research it was the best answer i could get.
Answer:
The correct answer would be:
Advantage: helps in finding the exact ph value with a narrower range.
Disadvantage: You don't know the exact ph value on a regular scale.
Explanation:
The pH paper is a pH paper with a color indicator that helps in determining the pH value precisely between the 4.5 to 7.5 pH range. It is accurate in comparison to other pH papers such as 0-14 paper. One no need to guess the color between the different colors from various color mixtures as it has a more precise color reading that helps in finding accurate pH value in a narrow range.
On a regular scale, it is not as accurate and one can not find the exact value as it provides a narrow range value between 4.5 to 7.5.
There are three possible types of room in the hospital:
1. ward (3-4 patients)
2. semi-private room (2 patients)
3. private room (1 patient).
Incidence of hospital-acquired infections is growing, so it would be desirable to promote greater safety for patients in order to avoid those nosocomial infections. So, the best way to prevent the spread of infections is to put patients that are contagious into semi-private and private rooms.