Answer:
Oxidation number of F2O = 0−(−1×2)
State of oxygen will be=+2
31.9988 grams but you didn’t hear it from me
Answer:
The mass of 2 moles of Br subscript 2.
Explanation:
Avogadro's number( 6.02x10^23) is the number of molecules/atoms in one mole of an element or compound.
<span>The molar heat of solution of NaOH is -445,100 J/mol. To compute much heat (in J) will be released if 40.00 g of NaOH are dissolved in water, we first convert the given grams of NaOH to moles of NaOH, and use the given molar heat of solution to compute for the energy. (Using dimensional analysis):
40 g NaOH x (1 mol NaOH/ 40 g NaOH) x (-445100 J / 1 mol NaOH) = -445100 J of energy.</span>