Can anyone help with Standard Cell Potential?

Determine the moles of H+ reacting with the metal based on the following experimental data. 10.00 mL of 1.00 M HCl solution is a

musickatia [10]

Answer:

Approximately $1.876 \times 10^{-3}\; \rm mol$ .

Explanation:

Convert both volumes to standard units (that is: liters.)

$10.00 \; \rm mL = 10.00 \times 10^{-3}\; \rm L = 1.000 \times 10^{-2}\; \rm L$ .
$27.08 \; \rm mL = 27.08 \times 10^{-3}\; \rm L = 2.708 \times 10^{-2}\; \rm L$ .

Number of moles of $\rm HCl$ initially present (in the $10.00\; \rm mL$ solution at $1.00\; \rm M$ .)

$n(\mathrm{HCl}, \, \text{initial}) = \displaystyle c \cdot V = 1.00\times 1.000 \times 10^{-2}= 1.000\times 10^{-2}\; \rm mol$ .

Number of moles of $\rm NaOH$ from the titration:

$n(\mathrm{NaOH}) = c \cdot V = 0.30 \times 2.708 \times 10^{-2} = 8.124 \times 10^{-3}\; \rm mol$ .

$\rm NaOH$ neutralizes $\rm HCl$ at a $1:1$ ratio:

$\rm HCl + NaOH \to NaCl + H_2O$ .

Hence, $n(\mathrm{HCl},\, \text{leftover}) = n(\mathrm{NaOH}) = 8.124 \times 10^{-3}\; \rm mol$ .

$\begin{aligned}&n(\mathrm{HCl},\, \text{consumed}) \\ =& n(\mathrm{HCl},\, \text{initial}) - n(\mathrm{HCl},\, \text{leftover}) \\ =& 1.000\times 10^{-2} - 8.124\times 10^{-3} \\ =& 1.876 \times 10^{-3}\; \rm mol\end{aligned}$ .

3 0

2 years ago

Balance this chemical formula<br> Fe + Cl2 = FeCl3

san4es73 [151]

First you find out how much each element has

Fe=1 * 2 Fe=1
Cl=2 *3 Cl=3 *2

now we multiply each so we can balance each side.

So now we get our balanced equation
2 Fe + 3 Cl2 = 2 FeCl<span>3</span>

5 0

2 years ago

Read 2 more answers

What are the ionic bonds

zhuklara [117]

Explanation:

Ionic bonds are bonds formed as a result of the electrostatic attraction between two species.

This bond type is an interatomic bond.
It forms when two specie with a large electronegative difference between them combines.
This is usually a metal and a non-metal.
The metal loses its valence electrons and becomes positively charged.
The non-metal gains the electron and becomes negatively charged.
An electrostatic attraction between the two specie leads to the formation of an ionic bond.
They are solids with a high melting point.
They are soluble in polar solvents.

learn more:

Ionic bonds brainly.com/question/6071838

#learnwithBrainly

3 0

2 years ago

Two children on a seesaw are able to balance perfectly while on Earth.would they still be balanced if you saw was brought to the

Setler [38]

Answer:

C

Explanation:

Because on the moon you are basically weightless and your mass would stay the same

3 0

3 years ago

True or false. Air masses mix at fronts?

Elina [12.6K]

The correct answer is False

6 0

2 years ago

Can anyone help with Standard Cell Potential?​

Can anyone help with Standard Cell Potential?