Given the heating curve of a solid being heated at a constant rate, how much total time was required to boil this substance after it reached its melting point?

What does x represent in the formula for the compound xcl4?

Calculate the number of moles of ethane in 100 grams

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.