Question

exhaled air contains 16% oxygen by volume. Assuming you exhale like the average person does during strenuous exercise (that is, you exhale 1L of air per breath and you exhale 40 breaths per minute) ad assuming the dive will take 90 minutes, what volume of oxygen will you end up exhaling?

Answer 1

Is there some kind of formula for this? Do you know it if there is one?

Answer 2

There isn't you have to make one...like yu have to put them in fractions. I think the 90 min is 90min/1 and 16% is 16L oxy/100L air, that's all I know

Answer 3

ahh m confused...

Answer 4

I mean I can how an example one my teacher taught us. I just don't know this one

Answer 5

ok why not show the example we might be able to help you :)

Answer 6

okay

The percent statement :

The serum contains 42% antidote by mass

For every 100g of serum you get 42% of antidote.
So you can write it as a fraction of 42g antidote/100g serum or 100g serum/42g antidote

Answer 7

The something per something statement

Serum has a density of 0.69 grams per milliliter

1 mili=0.69 grams


0.69g serum/1 mL serum or 1 mL serum/0.69g serum

Answer 8

wow this is really confusing maybe @Nnesha or @Marki know? i hope :(

Answer 9

@Abhisar help?

Answer 10

the equals or is statement

1 mili=0.034 fluid ounces

1 mL serum/0.034 fl oz serum or 0.034 fl oz/1 mL serum

Answer 11

and the last one is

you need 3400 milligrams of antidote

3400 mg antidote/1 or 1/3400 mg antidote

so now you put it into an equation like this:

Answer 12

since we need to find how much fl oz we need of antidote the answer needs to be fl oz

? fl oz = 0.034 fl oz/1 x 1 mL/0.69 g x 100g/42g x 1g/1000 mg x 3400 mg/1

Answer 13

you then cancel out the like terms then go the math. If it is in the numerator yu multiply and I in the denominator you divide. So it would be 3400/1000 x 100/42/0.69 x 0.034 = 0.39889579 fl oz

Answer 14

Tht's the example @pooja195 @SyedMohammed98

Answer 15

i am so confused on this O_o @TheRaggedyDoctor any ideas or @jagr2713

Answer 16

i dont get it to

@Kainui @TheSmartOne @freckles

Answer 17

:(

Answer 18

I honestly can't connect the question to the example either :/

@Kainui @Destinymasha @iambatman @dan815 @Mimi_x3
Can you guys understand this?

Oooh! @Preetha is awesome in Chemistry. Maybe she can understand this :)

Answer 19

what are you confused about

Answer 20

How to set up the problem I asked. I did it in class with a partner but when I went to submit it in it was wrong.

Answer 21

which problem?

Answer 22

The one I asked on top that says exhaled air contains 16%

Answer 23

ok

Answer 24

exhaled air contains 16% oxygen by volume. Assuming you exhale like the average person does during strenuous exercise (that is, you exhale 1L of air per breath and you exhale 40 breaths per minute) ad assuming the dive will take 90 minutes, what volume of oxygen will you end up exhaling?

Answer 25

yes that one

Answer 26

http://prntscr.com/5zws4z

Answer 27

totalbreaths in 90 mins = 40*90=3600
1L/breath so, 3600 L of air released

16% of 3600 = 0.16*3600

Answer 28

Thanks Dan :)

Answer 29

so 0.16*3600 will be my answer?

Answer 30

Great job Dan

Answer 31

so would the answer be 576 L oxygen ?

Answer 32

yes

Answer 33

Thank you !! It was right