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Nonamiya [84]
3 years ago
13

Part A Indicate whether each statement is true or false. Sort these statements into the proper categories. ResetHelp NaClNaCl di

ssolves in water but not in benzene because the water-ion interactions are stronger than benzene-ion interactions.NaClNaCl dissolves in water but not in hexane because the enthalpy of mixing NaClNaCl with water is more negative than that of mixing NaClNaCl with hexane.NaClNaCl dissolves in water but not in benzene (C6H6)(C6H6) because there are no hydrogen bonds in benzene. True False
Chemistry
1 answer:
kolezko [41]3 years ago
8 0

Answer:

Explanation:

NaCl dissolves in water but not in benzene because the water-ion interactions are stronger than benzene-ion interactions.

This statement is true . NaCl is ionic compound . I water is ionises strongly because of strong ion - water interaction . It does not dissolve in benzene because of low ion - benzene interaction .

NaCl dissolves in water but not in hexane because the enthalpy of mixing NaCl with water is more negative than that of mixing NaCl with hexane.

This statement is wrong because enthalpy of mixing NaCl with water is positive and not negative .

NaCl dissolves in water but not in benzene(C6H6) because there are no hydrogen bonds in benzene.

This statement is wrong . NaCl does not make hydrogen bond with water molecule .

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Answer:

Mass of carbon dioxide = 7.48 g

Explanation:

Given data:

Mass of lithium carbonate = 12.5 g

Mass of carbon dioxide produced = ?

Solution:

Chemical equation:

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Number of moles of Li₂CO₃:

Number of moles = mass/ molar mass

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Now we will compare the moles of Li₂CO₃  with CO₂.

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                     1                :               1

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Mass of carbon dioxide:

Mass of carbon dioxide = number of moles × molar mass

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