Question

***I will fan and medal. Please Help***
If you ever swam in a pool and your eyes began to sting and turn red, you felt the effects of an incorrect pH level. pH measures the concentration of hydronium ions and can be modeled by the function p(t) = −log10t. The variable t represents the amount of hydronium ions; p(t) gives the resulting pH level.

Water at 25 degrees Celsius has a pH of 7. Anything that has a pH less than 7 is called acidic, a pH above 7 is basic, or alkaline. Seawater has a pH just more than 8, whereas lemonade has a pH of approximately 3.

Answer 1

1. Create a graph of the pH function either by hand or using technology. Locate on your graph where the pH value is 0 and where it is 1. You may need to zoom in on your graph.

Answer 2

2. The pool maintenance man forgot to bring his logarithmic charts, and he needs to raise the amount of hydronium ions, t, in the pool by 0.50. To do this, he can use the graph you created. Use your graph to find the pH level if the amount of hydronium ions is raised to 0.50. Then, convert the logarithmic function into an exponential function using y for the pH.

Answer 3

3. The pool company developed new chemicals that transform the pH scale. Using the pH function p(t) = −log10t as the parent function, explain which transformation results in a y-intercept and why. You may graph by hand or using technology. Use complete sentences and show all translations on your graph.
p(t) + 1
p(t + 1)
−1 • p(t)

Answer 4

@ganeshie8 @phi @asyl98 @marrero @Elsa213 @SolomonZelman @LynFran @nincompoop @huntin14 @diamondswag @Vocaloid @ikram002p @Callisto @perl @rvc @zepdrix

Answer 5

@UsukiDoll

Answer 6

@butterflydreamer

Answer 7

@jigglypuff314

Answer 8

This is not Chemistry. This is Algebra 2

Answer 9

is -log10t
a base 10
or log(10t) ?

Answer 10

base 10

Answer 11

https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&es_th=1&ie=UTF-8#q=y+%3D+-log(x)

what is x when y = 1
what is x when y = 0

Answer 12

Wait, it does not have base 10

Answer 13

welll it's not making much sense because I assume pH can't be negative >.>

Answer 14

I did the graph I think it is .20 for when y = 1 and 1 when y =0

Answer 15

.10*

Answer 16

mhmm that's what I got, but I'm not completely sure of myself

Answer 17

Ok, since both got the same. Can you help me with part 2 now please.

Answer 18

*scratches head* water pH = 7
7 = -log10t
find t ?
but he has to raise t by 0.5
so 7 = -log10(t+0.5) perhaps

Answer 19

*googles*

Answer 20

or they mean 0.5 = t
solve for p(t)

Answer 21

aka
look at x = 0.5 on the graph y = ?

Answer 22

y = 0.3

Answer 23

so is 7 = -log10(t+0.5) the function you are most positive with

Answer 24

nope

Answer 25

yea i just tried to graph it but it did not work

Answer 26

http://openstudy.com/study#/updates/5317df4ee4b0572ef0fc3957
https://www.wyzant.com/resources/answers/122231/if_you_ever_swam_in_a_pool_and_your_eyes_began_to_sting_and_turn_red_you_felt_the_effects_of_an_incorrect_ph_level_ph_measures_the_concentration_of_hydronium

Answer 27

sorry, I've gtg
perhaps @chmvijay could help?

Answer 28

@chmvijay I need your help with number 2 please