Answer:
See image attached
Explanation:
The hydroxide ion concentration can easily be calculated from the concentration of the metal hydroxide solutions given as shown in the solution attached. The pH can now be obtained from there using pH+pOH=14. The pH value is always greater than the the pOH value as shown in the solution to the problems attached.
Question (c) contains incorrect data that cannot be used to calculate the required parameters.
Answer:
7.235 mol of S are in the given sample
Explanation:
Number of mol calculated as follows:
Number of mol = amount in g / molar mass
Given that amount of sulfur = 232 grams.
Molar mass of sulfur = 32.065 g/ mol
Therefore the number of S is calculated as follows:
Number of mol = 232 grams/ 32.065 g/ mol
= 7.235 mol
7.235 mol of S are in the given sample
Answer:
B.the reaction is spontaneous
Answer:
modular
Explanation:
<em>The addition of extra liquid protein supplement to the tube feeding formula of Alice is an example of modular formula.</em>
<u>A modular formula consists of a deficient food supplements that is specifically rich in a particular macronutrient such as protein, carbohydrate, etc. </u>
The supplements in modular formula are usually in liquid from and are introduced into the tube feeding formula of a patient undergoing tube feeding.
In this case, the macronutrient in the liquid food supplement being given to Alice is protein.
Answer: 1.80g
Explanation:
Molar Mass of AlCl3 = 27 + (3x35.5)
= 27 + 106.5 = 133.5g/mol
Number of mole of AlCl3 = 0.0135mol
Mass = 0.0135 x 133.5= 1.80g
