You are driving west on highway 510 in a european car. the speed limit for this portion of the highway is 50 miles per hour. your speedometer reads 120 km/hr. are you speeding or not? how fast are you traveling in mph? (1 km =0.621 miles)

Divide 50 miles an hour or mph by 0.621, should give you 80.51 kilometers an hour or km/hr, this being the speed limit on that street in km/hr. If you're going 120 km/hr on an 80.51 kilometers an hour road you are speeding, as you're above the speed limit.

answer; /// the amount of material dissolved in a measure of liquid(concentration) the above statement is (true); /// good luck

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.