The first ionization energies (kl/mol) of hydrogen (H), nitrogen (N), fluroine (F), and oxygen (O) are 1,312, 1,402, 1,742, and
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<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:
Mass percent means that the mass of a substance is present in 100 grams of mixture
To calculate the number of moles, we use the equation:
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
Answer:
Explanation: A yellow precipitate o lead iodide is formed. see equation of reaction below: →
Th PbI2 is the insoluble yellow precipitate