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chem, grade 12

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I'm having a hard time with this...

...I need help. I want to learn...

Question 1)
The electrolyte from a car battery has H2S04 (aq) concentration of 4.5 per mol and a density of 1.18g per mol.

What is the percentage by mass of H2S04 in the electrolyte?

..I have abt four more questions...


The concentration is not specified. 4.5 WHAT per mol of WHAT?

What animal begins with a letter x in it's name?

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