Maybe
A. 400 ml of 5.0% glucose solution
Answer:
5.63 mol.
Explanation:
- The balanced chemical equation between NO₂ and H₂O is:
<em>3NO₂(s) + H₂O(l) → 2HNO₃(aq) + NO(g),
</em>
It is clear that 3 mol of NO₂ reacts with 1 mol of H₂O to produce 2 mol of HNO₃ and 1 mol of NO.
<em>Water is present as an excess reactant and NO₂ is limiting reactant.</em>
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- To find the no. of moles of HNO₃ produced:
3 mol of NO₂ produces → 2 mol of HNO₃, from stichiometry.
8.44 mol of NO₂ produces → ??? mol of HNO₃.
∴ The no. of moles of HNO₃ are formed = (8.44 mol)(2 mol)/(3 mol) = 5.63 mol.
To find the molar mass<span> of </span>Ba(NO3)2<span>, determine the </span>molar masses of all the atoms that form it. The Molar mass for Barium nitrate is <span>261.337 g/mol.</span>
Answer:
I believe it to be a difference in isotopes.
Explanation:
This is because since both are the same element it cannot be allotropes which are on a molecular level so it must be isotopes.
<span>Uranium has an atomic weight of 238.03 g/mol.
We have 1.32x10^20 atoms of uranium.
We must convert this to moles by dividing Avogadro's number 6.022x10^23 atoms/mol.
(1.32x10^20atoms)/(6.022x10^23atoms/mol)
2.19x10^-4moles of Uranium
Now multiply this by the atomic weight of Uranium.
2.19x10^-4mol*238.03g/mol
Grams of Uranium = .0522g</span>
