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2 years ago

For the reaction 2Na + Cl2 → 2NaCl, how many grams of chlorine gas are required to react completely with 57.5 mol of sodium?

Chemistry

1 answer:

Step2247 [10]2 years ago

4 0

Answer:

1019.27 g.

Explanation:

For the balanced reaction:

2Na + Cl₂ → 2NaCl,

It is clear 2 moles of Na with 1 mole of Cl₂ to produce 2 moles NaCl.

Firstly, we need to calculate the no. of moles of Cl₂ is needed to react with 57.5 mol Na:

2 moles of Na need → 1 mol of Cl₂, from the stichiometry.

57.5 moles of Na need → ??? mol of Cl₂.

∴ The no. of moles of Cl₂ is needed to react with 57.5 mol Na = (1 mol)(57.5 mol)/((2 mol) = 28.75 mol.

∴ the mass of Cl₂ is needed to react with 57.5 mol Na = (no. of moles of Cl₂)(molar mass of Cl₂) = (28.75 mol)(35.453 g/mol) = 1019.27 g.

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2 years ago

47.9 ml hrdrogen is collected at 26° Celsius and 718 torr. Find the volume occupied at STP

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Answer:

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Explanation:

Applying the general gas equation,

PV/T = P'V'/T'............... Equation 1

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2 years ago

(a) what is the approximate ductility (%el) of a brass that has a yield strength of 230 mpa (33360 psi)?

ss7ja [257]

Based on the calculations, the approximate ductility (%el) of this brass is equal to 2.3%.

Given the following data:

Yield strength = 230 mpa (33360 psi).

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Ductility can be defined as an important property of a material which determines its ability to become elongated due to the application of stress.

Mathematically, the ductility of a material can be expressed as percentage elongation in length:

$\% el = \frac{\Delta L}{L_i} =\frac{L_f - L_i}{L_i}$

Where:

$L_i$ is the original length.

$L_f$ is the final length.

$\Delta L$ is the yield strength.

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$\% el = \frac{230}{100}$

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Read more on ductility here: brainly.com/question/828860

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1 year ago

How do we measure the mass of an extrasolar planet?

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2 years ago

What is the ph of a solution that contains 1.0 l of 0.10 m ch3cooh and 0.080 m nach3coo after 0.03 moles of naoh added?

zimovet [89]

Answer: pH = 4.996

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2 years ago