Explanation:
Bromothymol blue changes colour from blue to yellow due to the high carbon dioxide content being exhaled and dissolved in the solution.
Answer:
the answer would be 6.720
Simply subtract the combined mass by the mass of the beaker.
The answer has 3 decimal places because the least amount of decimal places in the equation is 3.
At STP
1L O₂ → 2L CO₂
xL O₂ → 5.0L CO₂
x=2.5 L
Answer: There are 3 triple points in the given phase diagram.
Explanation: Triple point is defined as the point at which the temperature and pressure of the 3 phases are in equilibrium with each other.
In the given phase diagram, there are three points which is satisfying this definition.
Point A: At this point The monoclinic form and rhombic form have the same vapor pressure. Hence,
Point B: At this point, the monoclinic form starts to melt. Hence,
Point C: At this point, the rhombic form, monolinic form and liquid is in equilibrium. Hence,
Hence, this system has 3 triple points.
Molecules containing a large number of hydroxyl groups are soluble in water. Molecules which contains the functional group hydroxyl or -OH are called alcohols. Water and alcohols share some similar properties. One would be its polar properties. Alcohols are polar molecules as they contain a partial positive and partial negative end. Making them to be miscible in water. The hydroxyl groups in alcohol are capable of forming hydrogen bonds with the water molecules and with other alcohols. As the number of the hydroxyl groups increases, the polarity of the molecule would also increase making it more soluble in water.