Answer:
of sodium arsenate would be present in a 1.70 L sample of drinking water that just meets the standard.
Explanation:
Mass of sodium arsenate =x
Mass of water = M
Density of water = d = 1000 g/L
Volume of the water , V= 1.70 L
M =
1 Parts per billion = 1 μg/kg =
(1 kg =1000 g)
Moles of arsenic =
1 mole of sodium arsenate has 1 mol of arsenic atom.Then of arsenic will found in:
of sodium arsenate.
Mass of of sodium arsenate:
of sodium arsenate would be present in a 1.70 L sample of drinking water that just meets the standard.
Answer:
See Explanation
Explanation:
In electrolysis, a solution called the electrolyte is decomposed by the passage of direct current through it.
The points through which current enters and leaves the electrolyte are called electrodes. In electrolysis, oxidation occurs at the anode and reduction occurs at the cathode.
In the electrolysis of water; at the anode oxygen is produced as follows;
4OH^-(aq) -----> 2H2O(l) + O2(g) + 4e
Partial pressure is the pressure that is exerted by individual gases.
Partial pressure is calculated as the product of total pressure by the mole fraction of the corresponding gas.
pressures exerted by gases are in three different units, therefore we can convert them all into a common unit - torr
1 - 0.845 atm - 0.854 atm x 760 Torr/atm = 642 torr
2 - 120 torr
3 - 210 mmHg - 1 mmhg is almost equivalent to 1 torr - therefore its 210 torr
total pressure - 642 + 120 + 210 = 972 torr
answer is 972 torr
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Explanation:
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