1. A solution has a [H+] of 0.20 M. Find the pH of this solution. 2. A solution has a [H+] of a 0.00200 M . Find the pH of this solution.
3. A solution has a [OH-] of 0.050 M. Find the pH of this solution.
4. A solution has [H+] = 2.35 × 10-3 M. Find the [OH-] for this solution.
5. A solution has pOH = 5.640. Find the [H+] for this solution. (Hint: Find pH first. Then use the formula [H+]= 10-pH to solve for [H+] )

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

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?

Which element is the least metallic between cadmium, silver, zinc, or iron?