mass of 1 mole of N is 14g
so mass of 3.45 mole is
3.45 × 14 = 48.3 g
Answer:
Water is the solvent
Both the ethanol and the hydrogen peroxide are the solute
Explanation:
Both the hydrogen peroxide and ethanol are sisobable in water.
There are 0.05 moles of ethanol.
1 litreof water contains 55.55 moles of water.
0.2 g of hydrogen peroxide contains 0.2/34 = 0.0059 moles of hydrogen peroxide (the 34 is the molar mass of hydrogen peroxide).
Since there are more moles of water, water becomes the solvent and the other two liquids dissolve in it.
Answer:
331 g
Explanation:
Step 1: Write the balanced equation
N₂(g) + 3 H₂(g) → 2 NH₃(g)
Step 2: Calculate the moles corresponding to 400 g of ammonia
The molar mass of ammonia is 17.03 g/mol.
Step 3: Calculate the moles required of nitrogen
The molar ratio of N₂ to NH₃ is 1:2.
Step 4: Calculate the mass corresponding to 11.8 moles of nitrogen
The molar mass of nitrogen is 28.01 g/mol.
The value of of is 1.7× .
So, option C is correct one.
Calculation,
Number of moles of = mass/molar mass = 0.45/278.1 = 1.618× moles
Concentration of and ion
Molarity of = Number of moles of solute /volume in lit
Molarity of = 1.618× moles /0.1 lit = 0.0162 M
→ + 2
For certain amount of , twice this amount of ion formed.
The concentration of ion formed = 2× 0.0162 M = 0.0324 M
Now,
of = [ ] = 0.0162 × = 1.7× .
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