Answer:
0.005404 M
Explanation:
Since you added an excess of sodium carbonate you warrantied that all the in the sample reacted with it. So we can say that the insoluble lead (II) carbonate contains all the ions in the original sample.
The moles of are:
One mol of is required to form one mol of . So, the stoichiometric relationship between them is 1:1.
Knowing this, 0.00054 is also the number of moles of in the original sample.
So, the concentration of in the original sample is:
Answer:
conversion of sunlight to cloraphil
Explanation:
plants absorb sun and convert it to energy
Answer:
i have taken environmental science so i can help
Answer:
<h3>a,15</h3><h3>b,14</h3><h3>c,17</h3><h3>d,18</h3><h3 /><h3>I hope it helps you</h3>
Answer:
Option A
Explanation:
Number of millimoles of Na3PO4 = 1 × 100 = 100
Number of millimoles of AgNO3 = 1 × 100 = 100
When 1 mole of Na3PO4 is dissociated we get 3 moles of sodium ions and 1 mole of phosphate ion
When 1 mole of AgNO3 is dissociated, we get 1 mole of Ag+ and 1 mole of NO3-
As Ag+ concentration is negligible, the dissociated Ag+ ion must have form the precipitate with phosphate ion and as number of moles of Ag+ and phosphate ion are same, therefore the concentration of phosphate ion must be negligible
Here as 100 millimoles of Na3PO4 is there, we get 300 millimoles of Na+ and 100 millimoles of PO43-
And as 100 millimoles of AgNO3 is there, we get 100 millimoles of Ag+ and 100 millimoles of NO3-
∴ Increasing order of concentration will be PO43- < NO3- < Na+