Answer:
26.2kPa is the partial pressure of nitrogen
Explanation:
<em>Assuming the partial pressure of Carbon dioxide is 0.070atm</em>
<em />
The total pressure of a mixture of 3 gases (CO2, O2 and N2) is:
Total pressure = Partial pressure CO2 + Partial pressure O2 + Partial pressure N2
0.070atm CO2 are:
0.070atm * (760mmHg / 1atm) 53.2mmHg
Replacing:
930mmHg = 53.2mmHg + 680mmHg + Partial pressure N2
Partial Pressure N2 = 196.8mmHg
In kPa -101.325kPa = 760mmHg-
196.8mmHg * (101.325kPa / 760mmHg) =
<h3>26.2kPa is the partial pressure of nitrogen</h3>
Barium (Ba) has the lowest electronegativity of the choices you have given.
The electronegativity of Calcium (Ca) is 1
The electronegativity of Strontium (Sr) is 0.95
The electronegativity of Magnseium (Mg) is 1.31 (has the highest)
The electronegativity of Barium (Ba) is 0.89
Of the list above, you can see that Barium has the lower level of electronegativity (0.89). Therefore, the correct answer is D.
Let me know if you need further info.
- Dotz
Do a quick conversion: 1 grams Co2 = 0.0084841820909097 mole using the molecular weight calculator and the molar mass of Co2.
Answer: (2) CO
Co, Cr, and Cu are elements. Elements cannot be broken down by a chemical change, but compounds can. Since CO is a compound, it can be decomposed by a chemical change.