To calculate the concentration of the stock trioxonitrate (V) acid, we will first calculate the concentration of the pure trioxonitrate (V) acid and then adjust it for the purity.
Step 1: Calculate the concentration of pure trioxonitrate (V) acid.
Given: Mass density = 1.5 g/cm^3
Mr (molar mass) of HNO3 = 63 g/mol
To calculate the concentration, we need to convert the density into molarity. The formula for converting mass density to molarity is:
Molarity (M) = (Mass density / Mr) * 1000
Molarity = (1.5 g/cm^3 / 63 g/mol) * 1000 = 23.81 mol/L
Step 2: Adjust for the purity.
Given: Purity = 70%
To adjust for purity, we multiply the concentration of pure trioxonitrate (V) acid by the purity percentage:
Adjusted concentration = Molarity * (Purity / 100)
Adjusted concentration = 23.81 mol/L * (70 / 100) = 16.67 mol/L
Therefore, the concentration of the stock trioxonitrate (V) acid with a mass density of 1.5 g/cm^3 and a purity of 70% is approximately 16.67 mol/L.
Calculate the concentration of stock trioxonitrate (V) acid which has a mass density of 1.5g/cm3 and has purity of 70%. [Mr; HNO3=63]
5 answers
How many electrons carry a total charge of 48250C?[1F=96500C/mol, L=6.02×10^23particles/mol]
To calculate the number of electrons carrying a total charge of 48250C, we need to use the relationship between charge and the number of moles of electrons.
Given: Total charge = 48250C
1 F = 96500 C/mol
Step 1: Convert the total charge from Coulombs to Farads.
Total charge (in moles) = Total charge (in Coulombs) / 96500 C/mol
Total charge (in moles) = 48250C / 96500 C/mol = 0.5 mol
Step 2: Convert the moles of electrons to the number of electrons.
Given: Avogadro's number (L) = 6.02×10^23 particles/mol
Number of electrons = Total charge (in moles) * L
Number of electrons = 0.5 mol * 6.02×10^23 particles/mol
Number of electrons = 3.01×10^23 electrons
Therefore, a total charge of 48250C carries approximately 3.01×10^23 electrons.
Given: Total charge = 48250C
1 F = 96500 C/mol
Step 1: Convert the total charge from Coulombs to Farads.
Total charge (in moles) = Total charge (in Coulombs) / 96500 C/mol
Total charge (in moles) = 48250C / 96500 C/mol = 0.5 mol
Step 2: Convert the moles of electrons to the number of electrons.
Given: Avogadro's number (L) = 6.02×10^23 particles/mol
Number of electrons = Total charge (in moles) * L
Number of electrons = 0.5 mol * 6.02×10^23 particles/mol
Number of electrons = 3.01×10^23 electrons
Therefore, a total charge of 48250C carries approximately 3.01×10^23 electrons.
Calculate the charge in coulombs carried by 2mol of electrons[1F=96500C/mol]
To calculate the charge in coulombs carried by 2 moles of electrons, we can use the relationship between charge and the number of moles of electrons.
Given: Number of moles of electrons = 2 moles
1 F = 96500 C/mol
Step 1: Calculate the charge in coulombs.
Charge (in coulombs) = Number of moles of electrons * 1 F
Charge (in coulombs) = 2 moles * 96500 C/mol
Charge (in coulombs) = 193000 C
Therefore, 2 moles of electrons carry a charge of 193000 coulombs.
Given: Number of moles of electrons = 2 moles
1 F = 96500 C/mol
Step 1: Calculate the charge in coulombs.
Charge (in coulombs) = Number of moles of electrons * 1 F
Charge (in coulombs) = 2 moles * 96500 C/mol
Charge (in coulombs) = 193000 C
Therefore, 2 moles of electrons carry a charge of 193000 coulombs.
2 answers