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AleksAgata [21]
3 years ago
15

It is expected that the percent error for carbon will be much greater that germanium. Explain why this makes sense using the ele

ment placement on the periodic table in comparison with the elements tested/ graphed and the types of elements used to make the graph. Explain in terms of metal, nonmetal and metalloid
Chemistry
1 answer:
vodka [1.7K]3 years ago
5 0
People make limestone that helps
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Calcium chloride (cacl2) is an ionic compound that dissociates in water. a chemist forms a solution by mixing 0.50 mol cacl2 and
Akimi4 [234]

Calcium chloride (CaCl2) is a salt which dissociates when dissolved in water. Assuming that the dissociation is complete (100 %), then the half reaction for this would be:

<span>CaCl2 ---> Ca2+  +  2 Cl-</span>

We can see that in 1 mole of CaCl2 salt, 1 mole of Ca2+ ion and 2 moles of Cl- ion is created. Therefore there are 3 moles of ion per 1 mole of CaCl2. Using this ratio, the total number of moles of ions in the solution is:

Total number of ions = 0.5 mol CaCl2 * (3 moles ion / 1 mol CaCl2)

<span>Total number of ions = 1.5 moles ion</span>

3 0
3 years ago
Read 2 more answers
How many electrons in an atom can have the quantum number n equal to 2 and ml equal to 2?
disa [49]

The number of electrons in an atom which has its quantum number n equal to 2 (n = 2) and ml equal to 2 (ml = 2) is equal to zero (0).

<h3>What is an electron?</h3>

An electron can be defined as a subatomic particle that is negatively charged and it's found outside the nucleus of the atom of a chemical element. This ultimately implies that, an electron is the opposite of a subatomic particle called proton.

<h3>What is the Pauli exclusion principle?</h3>

The Pauli exclusion principle can be defined as a principle which states that no two electrons (fermions) in a single atom can have the same numerical values for all four (4) of their electronic quantum numbers.

Furthermore, this principle states that the orbital of an atom can only contain a maximum of two (2) electrons, and they must have opposing spin orientations.

Based on Pauli exclusion principle, we can infer and logically deduce that the number of electrons in an atom which has its quantum number n equal to 2 (n = 2) and ml equal to 2 (ml = 2) would be equal to zero (0).

Read more on Pauli exclusion principle here: brainly.com/question/20564744

#SPJ1

3 0
2 years ago
A sample of an unknown compound is vaporized at 130°C . The gas produced has a volume of 1280mL at a pressure of 1.00 atm and it
loris [4]
This is an ideal gas law question. It uses the ideal gas law equation, PV =nRT.
P = pressure, V = volume, n = moles, R is the constant, and T is temperature in kelvin. The temperature needs to be converted Kevin first. To convert from Celsius to Kevin, you add 273, meaning that the temp in Kevin is 403K. Then plug all the info into the equation to solve for moles.
(1.00atm)(1.280L)=n(0.0821)(403K)
n = 0.0387moles

To find molar mass, divide mass by moles.

4.03g / 0.0387moles = 104.17g/mol

104g/mol rounded to three significant digits
8 0
3 years ago
What is the average atomic mass of lithium?
leonid [27]
The average atomic mass of lithium is 6.941 amu.
4 0
4 years ago
What is the definition of titration
Setler [38]
A titration is a technique where a solution of known concentration is used to determine the concentration of an unknown solution. Typically, the titrant (the know solution) is added from a buret to a known quantity of the analyte (the unknown solution) until the reaction is complete
6 0
3 years ago
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