You prepare a solution of HCl, with out being quantitative, and measure the pH to be 0.78. What is the concentration of the solution?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Calculate the number of moles of ethane in 100 grams

Classify this reaction: 2al+n2-> aln.