Complex sentence: It is generally used as a substitute for tartaric acid and occasionally in place of citric acid, at a rate of 1.36 g of citric acid to every 0.91 grams of fumaric acid for the same taste.
Split into simpler sentences: It is generally used as a substitute for tartaric acid and occasionally in place of citric acid. At a rate of 1.36 g of citric to every 0.91 grams of fumaric acid for the same taste.