An empty flask is found to have a mass of 97.34 grams. a sample of vinegar is added to the flask and the total mass is measured at 119.22 grams. a 5.023-gram sample of tartaric acid is dissolved in water and diluted to 250.0 ml in a volumetric flask. a 34.2 ml portion of this tartaric acid solution reacts completely with 28.3 ml of a sodium hydroxide solution. the vinegar sample requires 40.1 ml of this same sodium hydroxide solution for complete reaction. calculate the percent (w/w) of acetic acid in the vinegar.

Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

Which is true about metals used for jewelry, such as platinum and gold? a. they have low flammability. b. they have low reactivity. c. they have high flammability. d. they have high reactivity.