3 years ago

3. What is the name of the technique used to weigh the unknown liquid in part A of the

1 answer:

Anna [14]3 years ago

7 0

Answer:

The technique is called weighing by difference

You might be interested in

sladkih [1.3K]

Yes it’s a real substance and yes it should be banned because it kills people without warning.It has no taste,smell,and you can’t see it.

5 0

3 years ago

rosijanka [135]

The person above me answered this correctly!! i have answered this before

8 0

4 years ago

Sonja [21]

Answer:

The Number of gold atoms are = $N_{Au}=1.81718*10^{22}\ atoms/cm^3$

Explanation:

The formula we are going to use is:

$N_{Au}=\frac{N_A*C_{Au}}{{\frac{C_{Au}A_{Au} }{\rho_{Au}}}+\frac{A_{Au}}{\rho_{Ag}}(100-C_{Au})}$

Where:

$N_{Au}$ are number of gold atoms.

$N_A$ is Avogadro Number.

$C_{Au}$ is the amount of gold.

$A_{Au}$ is the atomic weight of gold.

$\rho_{Au}$ is the density of gold.

$\rho_{Ag}$ is the density of silver.

$C_{Ag}$ is the amount of silver.

$N_{Au}=\frac{6.023*10^{23}*45\%wt}{\frac{45\%wt*196.97}{19.32}+\frac{196.97}{10.49}(100-45\%wt)}\\ N_{Au}=1.81718*10^{22}\ atoms/cm^3$

The Number of gold atoms are = $N_{Au}=1.81718*10^{22}\ atoms/cm^3$

5 0

3 years ago

Snezhnost [94]

ZnCl2 is the chemical formula, hope this helps.

7 0

3 years ago

alisha [4.7K]

The answer is B)4.0g

6 0

4 years ago