Not sure if any explanation is needed but always start with the most complex compound. In this case it is Al(OH)3. You can see that there is 4 Aluminiums on the other side so I would start by putting a 4 next to the Al(OH)3. This now gives me 12 Hydrogens and 12 Oxygens on the right side. I put a 3 next to the CH4 to balance the Carbons on the left side. This leaves me with 12 Oxygens and 24 Hydrogens on the right side. This ends up being perfect because I can put a 12 next to the H2O.

6 0

3 years ago

What is the chemical treatment for shattered glass on the floor?

Vinil7 [7]

Pick the glass up, place in a container to be thrown out later, and replace the glass. (Or are you talking about if someone steps on broken glass?)

5 0

3 years ago

To measure the amount of citric acid (C3 H, oHn a certain candy, an analytical chemist dissolves a 16.00 g sample of the candy i

Naily [24]

Answer:

Acid-Base reaction (the reactanct acting as a base is NaOH)

mass percent = 1.93%

Explanation:

The reaction that takes place is:

C₃H₅O(CO₂H)₃(aq) + 3OH⁻ (aq) → C₃H₅O(CO₂)₃⁻³(aq) + 3H₂O(l)

This is a acid-base reaction, with the citric acid acting as the acid and the sodium hydroxide NaOH acting as the base.

We calculate the moles of citric acid using the information from the titration:

0.0142 L * 0.340 M * $\frac{1molAcid}{3molOH^{-}}$ = 1.609x10⁻³ mol citric acid

Now we convert moles to mass using the acid's molecular weight (192.13g/mol):

1.609x10⁻³ mol citric acid * 192.13g/mol = 0.3092 g citric acid

Finally we calculate the mass percent of citric acid in the sample:

0.3092 g / 16.00 g * 100% = 1.93%

3 0

3 years ago