The chemical formula of hydrocortisone valerate is C26H38O6. First, we determine the molar mass of the substance by adding up all the products of the number of atoms and the molar mass of atoms as shown below.
molar mass = 26(12) + 38(1) + 6(16) = 446 g/mol
Since, there are 26 atoms of carbon in each molecule, the mass of carbon in each mole is
mass of carbon = (26)(12) = 312
Obtaining the percent by mass of carbon,
% by mass of carbon = (312/446) x 100 %
= 69.955%
Thus, the percent by mass of carbon in hydrocortisone valerate is approximately 69.96%.
Answer:
A. Mg(OH)2
Explanation:
all oxides are insoluble except those of Group IA metals. most sulfides S2- are insoluble, with the exceptions of Group I, II (slightly soluble) metals and ammonium - NH4+
Atoms that makes up carbon and water are found in table sugar.
Explanation:
These three substances are made up of similar atoms. Carbon is a single element on its own, water is a polar covalent compound and table sugar is a compound.
- The symbol of carbon is C, symbol of water is H₂O and table sugar is C₁₂H₂₂O₁₁
- From the above, one can conclude correctly that table sugar can be expressed in terms of carbon and water.
- Table sugar will then consist of 12 Carbon atoms, and 11 molecules of water.
- Simply 12(C) + 11(H₂O)
Learn more:
Water: brainly.com/question/10861183
sugar: brainly.com/question/8847168
#learnwithBrainly
The answer for this mathematical problem would be 27.922 because the word “product” means your answer after multiplying. So when they the product of (x) they mean blah (23.0 in this case) times blah (1.214 in this case) :)