Answer:
A step-by-step description of how to perform an operation or process.
Explanation:
: The course of action, or the description of a course of action, taken for the solution of a problem. [ SEMATECH] 2 :
1mol ------------ 3×6,02×10²³ oxygen atoms
x ------------ 2,55×10²⁴
x = 2,5×10²⁴ × 1mol / 3×6,02×10²³ ≈ 0,138*10 mol = 1,38mol
Answer:
the additional concentration of nitrogen = 0.04748 mg/L
Explanation:
From the given information:
The mass of the nitrogen added to the field per year = 10% of 1300.0 kg
=
= 130 kg
The mass of the nitrogen that is being also washed into the river
= 15% of 130 kg
=
= 15 × 1.3 kg
= 19.5 kg /year
Converting kg/year into milligram per seconds; we have:
= 0.61834 mg/seconds
If the river flows at an average rate of 0.460 cubic feet
Let's convert the cubic feet into liters
we all know that;
1 ft = 0.33 meter
1 cubic feet = 28.31 liters
∴ 0.460 cubic feet = 0.460 × 28.31
13.0226 liters
Finally, the additional concentration of nitrogen =
the additional concentration of nitrogen = 0.04748 mg/L
Answer:
12.4 × 10∧3 atoms
Explanation:
Given data:
moles of oxygen molecule= 1.0000 x 10-20 mol
atoms =?
Solution:
32 g O2 = 1 mol = 6.02 × 10∧23
1.0000 x 10∧-20 mol × 6.02 × 10∧23 × 2 = 12.4 × 10∧3 atoms