A photographic "stop bath" contains 140 mL of pure acetic acid in a 500 ml bottle of solution. What is the serverauge by volume concentration of acetic acid? (28.0 %v/v)

Endeleev saw trends in the physical and chemical properties of elements when he organized them by

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o