# Posts by mango

Total # Posts: 9

**math**

A line has a run of 5 feet and a rise of 13 feet. Determine the slope.

**math**

The scale on a map is 1cm :50 m.determine a distance of 4 cm in metres

**math**

The ratio of steve's age to tims age is 6:7. If steve is 84, how old is tim

**chemistry**

anyone knows how to do this ?

**chemistry**

anyone got it right?

**chemistry**

any news how to get an answer? i tried lots of ways from various posts and its not working out

**chemistry**

it doesnt work for me, in my question i have 38.0 x 10-2 and when i put it into the pattern above- the calculations are wrong. Could you please explain it in a simple way? why there is 4 and 0.26277 there?

**chemistry**

could you please write how you've got your numbers? I'm trying to calculate it on my own and the result is not different

**Chemistry**

If 2.00 liters of 0.580 M CuSO4 solution is electrolyzed by passing 1.70 amps through the solution for 2.00 hr using inert electrodes. What is the [Cu2+] in the solution at the end of the electrolysis?