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yawa3891 [41]
2 years ago
14

Find the volume of hydrogen gas formed when 1.5g of aluminum reacts with aq NaOH at 27 degrees Celcius.

Chemistry
1 answer:
soldier1979 [14.2K]2 years ago
5 0

Answer:

1.33litres

Explanation:

number of moles of aluminum is 1.5/27

comparing mole ratio of between aluminum and hydrogen which is 1:1, the moles of hydrogen is also 1.5/27,

volume of hydrogen at 27 degrees Celsius (room temperature) is 1.5/27*24litres= 1.33 litres

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Answer: In order to increase the rate of reaction between hydrochloric acid and sugar increase the concentration of hydrochloric acid to 2 M because greater concentration results in more collision between the reactants.

Explanation:

More is the concentration of reactant molecules more will be the number of collisions between their molecules. As a result, more readily the products will be formed.

Hence, for the given reaction when concentration of HCl is increased then there will be increase in the number of collisions between reactants.

Thus, we can conclude that in order to increase the rate of reaction between hydrochloric acid and sugar increase the concentration of hydrochloric acid to 2 M because greater concentration results in more collision between the reactants.

7 0
3 years ago
Brainliest.....If you give me a random answer you will be reported.... Also you will lose any chance to obtain a brainlest from
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Answer:

im pretty sure its b

Explanation:

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2 years ago
Calculate the lattice energy of CuBr(s) using a Born–Haber cycle.
In-s [12.5K]
The 2nd one I believe
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7 0
3 years ago
Will mark the brainiest later for correct answers! Please show work.
Elodia [21]

Answer:

According to avogadro's law, 1 mole of every substance contains avogadro's number 6.023\times 10^{23} of particles and weighs equal to its molecular mass.

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\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

\text{Number of moles}=\frac{\text{Given molecules}}{\text {Avogadros number}}

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molecules in 17.75 g of NaCl = 0.3034\times 6.023\times 10^{23}=1.827\times 10^{23}

formula units 17.75 g of NaCl = 0.3034\times 6.023\times 10^{23}=1.827\times 10^{23}

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3 years ago
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Blizzard [7]

Answer:

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