You are asked to bring the ph of 0.500l of 0.550 m nh4cl to 7.00. which of the following solutions would you use: 12.0 m hcl or 12.0 m nh3? how many drops (1 drop 0.05 ml ) of this solution would you use? the answer to part one is 12.0 m nh3 but how do you answer the second part? you

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)

Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?

Amethod of separation that employs a system with two phases of matter, a mobile phase and a stationary phase, is called