Answer:
55.0g water can be made
Explanation:
To solve this question, we must convert the molecules of H2 to moles using Avogadro's constant. With the moles, and the reaction:
H2 + 1/2O2 → H2O
We can find the moles of H2O = Moles H2 and its mass of using molar mass of water -H2O = 18.01g/mol-
<em>Moles H2 = Moles H2O:</em>
1.84x10²⁴ molecules * (1mol / 6.022x10²³ molecules) = 3.055 moles H2O
<em>Mass:</em>
3.055 moles H2O * (18.01g / mol) = 55.0g water can be made
Explanation:
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Answer:
6.2g of NaBr are produced
Explanation:
The reaction of HBr with NaOH occurs as follows:
HBr + NaOH → NaBr + H2O
<em>Where 1 mole of each reactant produce 1 mole of NaBr</em>
To solve this question we need to find the moles of each reactant using their molar mass. With moles we can find limiting reactant and the moles (And mass) of NaBr produced, as follows:
<em>Moles HBr -Molar mass: 80.9119g/mol)-</em>
4.9g * (1mol/80.9119g) = 0.0606 moles HBr
<em>Moles NaOH -Molar mass: 40g/mol-</em>
3.86g * (1mol/40g) = 0.0965 moles NaOH
As the reaction is 1:1 and the moles of HBr < Moles NaOH, the limiting reactant is HBr and moles of NaBr produced are 0.0606 moles.
The mass of NaBr (Molar mass: 102.894g/mol) is:
0.0606 moles * (102.894g/mol) =
<h3>6.2g of NaBr are produced</h3>
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<h3><u>What are purposes of Branched-chain amino acids (bcaas) ?</u></h3>
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To view more about amino acids, refer to:
brainly.com/question/15969022
#SPJ4
Zinc is oxidized because it starts as a metal with an oxidation state of zero and ends up as an atom bound to oxygen. Oxygen has two bonds, so the oxidation state of Zinc would be 2. The Mercury is therefore reduced because it undergoes the opposite process. This is a REDOX reaction, and the two half-reactions are:
Zn -> Zn(+2) + 2e(-)
Hg(+2) + 2e(-) -> Hg
The answer to your question is C. I hope that this is the answer that you were looking for and it has helped you.
