As Molarity is given by,
Molarity = moles / volume ------(1)
Data Given:
mass of water = 5 Kg = 5000 g
moles = 5 moles
Solution:
As we know that volume is related to mass as,
Volume = mass / density
Putting values,
Volume = 5000 g / 1 g/cm³
V = 5000 cm³
Now, Putting value of volume and moles in eq. 1,
M = 5 mol / 5000 cm³
M = 0.0001 mol/cm³
or,
M = 1 mol/dm³
The answer should be d all of the above
Answer:
1. Find the molar mass of NO2 (46.01)
2. Find the number of moles in 25 g of NO2 (by dividing 25 by the molar mass) 25/46.01 = .54
3. For every 3 moles of NO2 there are 2 moles of HNO3. multiply the number of moles of NO2 by 2/3
.54 x 2/3 = .36
4. Finally, multiply this number by the molar mass of HNO3 (63.018)
.36 x 63.018 = 22.68 g HNO3
Explanation: