A 0.1187 g sample of an unknown, diprocticsolid acid is dissolved in water. 26.36 mL or 0.1000 M sodium hydroxide is used to reach equivalence point. How many moles of sodium hydroxide were reacted? How many moles of acid were reacted? What is the molecular weight of the acid? H2C2O4+2NaOH=Na2C2O4+2H2O

Remember to use the proper number of significant figures and leading zeros in all calculations. gelatin has a density of 1.27 g/cm³. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?