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mafiozo [28]
3 years ago
6

 Please answers only , 100 pts and brainliest, wrong answers will be reported.

Chemistry
2 answers:
gavmur [86]3 years ago
4 0

Answer:

.2mol/L

Explanation:

Troyanec [42]3 years ago
3 0

Answer:

2mol/l

Explanation:

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A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of X and the percent by mass of
Aleksandr-060686 [28]

<u>Answer:</u> The additional information that is helpful in calculating the mole percent of XCl(s) and ZCl(s) is the molar masses of Z and X

<u>Explanation:</u>

To calculate the mole percent of a substance, we use the equation:

\text{Mole percent of a substance}=\frac{\text{Moles of a substance}}{\text{Total moles}}\times 100

Mass percent means that the mass of a substance is present in 100 grams of mixture

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We require the molar masses of Z and X to calculate the mole percent of Z and X respectively

Hence, the additional information that is helpful in calculating the mole percent of XCl(s) and ZCl(s) is the molar masses of Z and X

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