<span>Reaction of combustion ( CH4 ) :
</span><span>CH4 + 2 O2 = CO2 + 2 H2O
</span><span> </span>↓ ↓<span>
1 mole CH4 produced 2 moles of H2O
hope this helps!
</span>
Answer:
co is colbalt
Explanation:
Cobalt
Cobalt is a chemical element with symbol Co and atomic number 27.
First; use the relationship of molarity and moles/liter to find the moles of the solution.
so 0.600M ×0.030L = 0.018 moles
Then use the mole to mole ratio of lithium to lithium carbonate
0.18 × (2 Li ÷1 Li2CO3) = 0.036
and then multiply by Avogadro's number to find the ions of lithium
0.036 moles × (6.022×10^{23} ) = 2.167 ×10∧22 ions Li
Molarity is the most convenient way to express concentration.
Mathematically, molarity is expressed as

In present case,
mass of solute (KCl) = 36 g
molecular weight of KCl = 74.55 g/mol
volume of solution = 100 ml = 0.1 l
∴ Molarity =

= 4.829 M
Thus, conc. of saturated KCl at 20 oC is 4.829 M
Water that is returned to the environment after secondary treatment is known as effluent