Answer:
0.214 L
Explanation:
Step 1: Write the balanced equation
This is a single displacement reaction.
Zn(s) + 2 HCl(aq) ⇒ ZnCl₂(aq) + H₂(g)
Step 2: Calculate the moles corresponding to 0.625 g of Zn
The molar mass of Zn is 65.38 g/mol.
0.625 g × 1 mol/65.38 g = 9.56 × 10⁻³ mol
Step 3: Calculate the moles of H₂ produced from 9.56 × 10⁻³ moles of Zn
The molar ratio of Zn to H₂ is 1:1. The moles of H₂ produced are 1/1 × 9.56 × 10⁻³ mol = 9.56 × 10⁻³ mol.
Step 4: Calculate the volume occupied by 9.56 × 10⁻³ moles of hydrogen
Assuming standard pressure and temperature, 1 mole of hydrogen occupies 22.4 L.
9.56 × 10⁻³ mol × 22.4 L/1 mol = 0.214 L
Answer:intra and intermolecular force of attraction
Explanation:
The answer is d.
step by step explanation
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Reaction 2 will be 1.621 times faster than reaction 1
<u>Explanation:</u>
As the reaction 2 is taking 0.470 mol /L and reaction 1 is taking 0.290 mol /L, then the ratio of the rate of reaction will be

Asked reaction 2 how much faster than reaction 1, so rearrange the above equation, we get, 
Thus, 1.621 times reaction 2 is faster than reaction 1 as per the given question. As the reaction 2 is using more amount of reactants compared to reaction 1, the reaction 2 will be 1.6207 times faster than reaction 1.