Answer and explanation:
The attached figure shows five different structures for the chemical formula C4H5O5, but only one of these structures represent the malic acid.
Malic acid is a dicarboxylic acid, this means malic acid has two
-COOH groups. Also, malic acid is a secundary alcohol, which means it has a R2-C-OH group.
-Structure A has two carboxylic groups, but it doesn´t have a secundary alcohol.
-Structure B doesn´t have any caborxylic group.
-Structure C has two carboxylic groups and it is a secundary alcohol. Structure C is the Malic acid
Answer: The concentartion of solution will be 0.224 M
Explanation:
Molarity : It is defined as the number of moles of solute present per liter of the solution.
Formula used :
where,
n= moles of solute =
= volume of solution in ml = 275 ml
Now put all the given values in the formula of molarity, we get
Therefore, the concentration of solution will be 0.224 M
Glucose is C6H12O6 and the energy is located in its C-H bonds
There are 674 mg of calcium carbonate in a Rolaids tablet
<h3>Further explanation</h3>
Reaction
CaCO₃ + 2HCl ⇒ CaCl₂ + CO₂ +H₂O
V HCl = 24.65 ml
M HCl = 0.547
mol HCl :
ratio mol CaCO₃ : HCl = 1 : 2, so mol CaCO₃ :
mass of CaCO₃ (MW=100~g/mol) :
