Question

1. try another one.

consider a fictitious molecule, x₅ya₃.

the molar masses of the two elements are:
x = 15.49 g/mol
ya = 20.60 g/mol

calculate the molar mass of the compound, x₅ya₃.
i need a hint
blank g/mole
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score: 0/1 comments:
the compound x₅ya₃ is made of 5 moles element x and 3 element ya.

Explanation:

Step1: Calculate mass of X in compound

Molar mass of X is \(15.49\) g/mol, and there are 5 moles of X. So mass of X: \(5\times15.49 = 77.45\) g/mol.

Step2: Calculate mass of Ya in compound

Molar mass of Ya is \(20.60\) g/mol, and there are 3 moles of Ya. So mass of Ya: \(3\times20.60 = 61.80\) g/mol.

Step3: Sum masses to get molar mass of \(X_5Ya_3\)

Add mass of X and Ya: \(77.45 + 61.80 = 139.25\) g/mol.

Answer:

\(139.25\)