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What's the difference in indicator and reagent?
Indicators provide a visual signal to show the presence or absence of a specific substance or condition, such as pH. Reagents, on the other hand, are substances used in chemical reactions to detect, measure, or produce other substances. In summary, indicators signal a specific condition, while reagents actively participate in chemical reactions.
Why is it difficult to measure pH value of household bleach using universal indicator?
Household bleach is a strong alkaline solution, making it difficult to accurately measure its pH using universal indicator. Universal indicator is more suited for measuring pH in the neutral to slightly acidic range, and may not provide an accurate or precise reading for highly alkaline substances like bleach. A pH meter or specific alkaline pH indicator may be more suitable for measuring the pH of household bleach.
Why is it difficult to measure the pH value of household bleach using universal indicator?
Household bleach is a strong base, typically with a pH of around 11-13, which is outside the color range of universal indicator, making it difficult to accurately measure its pH using this indicator. Universal indicator is more useful for measuring pH in the neutral to slightly acidic range. To accurately measure the pH of bleach, a pH meter or pH paper with a broader range would be more suitable.
When you mix sugar and a universal indicator what colour does it become?
When sugar is mixed with universal indicator, it typically does not change color as the indicator is primarily used to measure pH levels in solutions, not sugar content. The indicator will only change color based on the acidity or alkalinity of the solution it is in.
What is pao2?
PaO2 stands for partial pressure of oxygen in arterial blood. It is a measure of the amount of oxygen dissolved in the blood and is an important parameter in determining the efficiency of oxygen exchange in the lungs.
