skip to main content

Math help please

6 years ago

I'm not really great at breaking down equations. My math problem; 12 oz of chemical to 100 gal. of water. Is it about 1 teaspoon per one gal. of water? I need to hear from someone that knows these equations please. Thank you.

Featured Answer

AquaEyes 7a NJ

6 years ago

You have two steps -- first is to reduce 100 gal to 1 gal, which means dividing both sides by 100. That equals 0.12 oz per 1 gal. Now you want to convert ounces to teaspoons. If you google your conversion, in this case "ounces to teaspoons", you'll get a converter. In this case, 0.12 oz equals 0.72 teaspoons -- which would be just under 3/4 teaspoon.

:-)

~Christopher

Sort by:Oldest

Comments (13)

towandaaz
6 years ago
So glad there are folks who are good at math!
Related Discussions
Math Madness with GeoThermal vs Hybrid - sanity check please.
Q
Comments (28)
"The trench would be about 7 feet deep and 1 foot wide, thus, the average depth of the coil would be about 5 feet." This tells me that they would install a vertical Slinky, probably with a backhoe. A chain trencher, 'Witch Ditch' would probably be narrower than 1 foot wide and would be a faster install, unless soil conditions do not permit this technique. Avg. depth of 5 feet could mean that the loops are 4 feet in diameter meaning the top of the loop may be only 3 feet below the surface. If this is so, then this may not ideal. Top of the loop should be at least 4 feet deep (minimum) or deeper. Digging should be contracted to someone with the right equipment (chain trencher, 'Witch Ditch'). Even then this may be less than ideal in that it's harder to flush a vertical slinky (standing up) than a horizontal slinky (laying flat) in that any trapped air will reside at the tops of these vertical loops. This trapped air could be a serious impediment to liquid flow as it may form an air lock thus shortening or short-circuiting the entire loop. Bottom line in plain English, it will work - if properly designed, installed, purged and FLUSHED! SR
...See More
Please check my math re beam spread from CR6?
Q
Comments (6)
This math stuff is way over my head, but looking at the output of my CR6's, there's no sharply defined light circle, or even really a vaguely defined circle. It's more like a simple surface-mounted overhead light - it's brighter underneath than far away, but the brightness is relatively even for at least a 15 foot circle from my less-than-9-foot ceilings, fading slightly as you get further away as it should (since presumably there's either another recessed light starting to take over, or a wall). The light's less focused than with a 55-degree PAR38 reflector bulb, though perhaps less than a cheap blown-glass R40 incandescent. The CR6 does an excellent job of not having any inordinately bright spots under the bulb though - it gives off nice even light. Anyway you can always go to Home Depot and buy one, plug it into a small table lamp or other movable socket, and try it out for yourself (or put it in a can if you already have a 6" recessed fixture somewhere) and see how it looks yourself, and return it if you don't like it.
...See More
Math help needed on hardware installation!
Q
Comments (16)
Here's a tip/trick. If you have an uneven fraction to divide, like 19 15/64", I use a technique I call divide and eyeball. I use the nearest whole fraction, in this case 9 1/2" (9 1/2 x2=19), and mark this distance in from both sides of the drawer. Then it's a simple matter to visually "split the difference" and place a tick mark at the visual center between the two earlier marks. This is also very nearly idiot proof. Another hardware tip. Drawer pulls: if you want them to appear as if they were vertically centered on the drawer front, in practice make them 1/8" higher than the actual center line. This gives them a subtle lift and makes up for the perspective issue (we are taller than drawers, and almost always are looking downward at them). Casey
...See More
Please help - shelves, studs, anchors, placement, weight, math
Q
Comments (14)
Ugh. Actual math ... http://www.factsfacts.com/MyHomeRepair/drywallfastenerstrengths.htm Ok, nerd heroes out there ... Is "B" the height of the shelf? So if my shelves are 2" but the screw is in the middle (so B = 1") and my shelves are 10" deep, is my x factor 10? Soooo 25lbs of plates becomes 25lbs x 10 = 250lbs in tension (pulling out force)? (Shelf is actually 11" deep but 10 is easier for the example.) Is the reason everyone's shelves aren't falling down, even placed in studs, that the weight of the plates are distributed over the shelf, not just hanging off the end? (So it isn't really 250lbs of tension?) And if that's true, how the heck do I know if I'd be ok with toggles or not?
...See More
dchall_san_antonio
6 years ago
Copy the following and paste it into Google

12 oz per 100 gallons in teaspoons per gallon

Gives you 1.38888888889 teaspoons per gallon.
Moses, Pittsburgh, W. PA., zone 5/6, USA
6 years ago
last modified: 6 years ago
Ken,

There are two tablespoons per ounce. 12 oz. equals 24 tablespoons (2 X 12= 24).

24 tablespoons equal 72 teaspoons, because there are 3 teaspoons per tablespoon (3 X 24=72).

If 72 teaspoons is the dilution strength for 100 gallons of water. The dilution strength for one gallon of water is .72 teaspoon (72÷100=.72).

3/4 (.75), teaspoon per gallon is as close to .72 teaspoon as any person could reasonably measure. One teaspoon per gallon may be too strong in strength.

Don't beat yourself up because you had to check your math calculations. I get stymied all the time with measurements, especially the older I get. You're to be commended, showing wisdom by asking for a check up. Wise Ken!

Moses
dchall_san_antonio
6 years ago
Okay. I've never seen Google steer me wrong, but the text I suggested is not working right. When I change it to 6 ounces per 100 gallons in teaspoons per 100 gallons it gives me 2.78 teaspoons per gallon. So it's going the wrong direction.

I'll see if I can figure out what's going on and get back with a better Google conversion suggestion.
Sheila z8a Rogue Valley OR
6 years ago
Dchall, my husband says your 1.39 ish tsp per gallon is right.
dchall_san_antonio
6 years ago
Weird. Wolframalpha got it wrong in a different way.

The solution seem easier to me like this

12 ounces per 100 gallons = .12 ounces per gallon. Then convert to teaspoons. Multiply by 6 teaspoons per ounce to get 0.72 teaspoons per gallon.
dchall_san_antonio
6 years ago
I sent feedback to Google. Google seems to be a black hole, but maybe this time it will work.
rifis (zone 6b-7a NJ)
6 years ago
"Math help please"

Cookery help is more like it.
Sheila z8a Rogue Valley OR
6 years ago
Never mind. My husband had the fraction backward.
bayarea_girl_z10a_ca
6 years ago
To continue with Christopher's calculation, if you want to use full units of teaspoons: 0.72 teaspoon chemical x 3 ====> 1 gal of water x 3

or roughly 2 teaspoons of chemical for every 3 gallons of water.
Dave5bWY
6 years ago
last modified: 6 years ago
For greater accuracy (as there is a therapeutic range), I would convert fl oz to mL. 1 fl oz = 30 mL. 12 X 30 = 360 ml then divide by 100 = 3.6 mL per gallon of water (yes, approx 3/4 tsp) I use an oral syringe (dosing infant medication - just ask your pharmacist for one).
Ken Wilkinson
Original Author
6 years ago
Thank you gang. Sometimes simple math can be a real pain in the sit down. I use a 5 gal bucket for my spray, so I'll put in 4 "easy" teaspoons.

Related Stories

Help Me Design My Wine Cellar - Please!

COLOR Pick-a-Paint Help: How to Create a Whole-House Color Palette

By Laura Gaskill

Don't be daunted. With these strategies, building a cohesive palette for your entire home is less difficult than it seems

HOME OFFICES Quiet, Please! How to Cut Noise Pollution at Home

By Christine Ciarmello

Leaf blowers, trucks or noisy neighbors driving you berserk? These sound-reduction strategies can help you hush things up

GARDENING GUIDES Great Design Plant: Ceanothus Pleases With Nectar and Fragrant Blooms

West Coast natives: The blue flowers of drought-tolerant ceanothus draw the eye and help support local wildlife too

GARDENING GUIDES Great Design Plant: Silphium Perfoliatum Pleases Wildlife

By Pollination Press LLC

Cup plant provides structure, cover, food and water to help attract and sustain wildlife in the eastern North American garden

TILE Moor Tile, Please!

By Karen Egly-Thompson

Add an exotic touch with Moroccan tiles in everything from intricate patterns and rich colors to subtle, luminous neutrals

SUMMER GARDENING Houzz Call: Please Show Us Your Summer Garden!

By Annie Thornton

Share pictures of your home and yard this summer — we’d love to feature them in an upcoming story

BATHROOM DESIGN Upload of the Day: A Mini Fridge in the Master Bathroom? Yes, Please!

By Mitchell Parker

Talk about convenience. Better yet, get it yourself after being inspired by this Texas bath

DECORATING GUIDES 10 Bedroom Design Ideas to Please Him and Her

By Judith Taylor Designs

Blend colors and styles to create a harmonious sanctuary for two, using these examples and tips

DECORATING GUIDES Please Touch: Texture Makes Rooms Spring to Life

Great design stimulates all the senses, including touch. Check out these great uses of texture, then let your fingers do the walking

Sponsored

Remodel Repair Construction

9 Reviews

Industry Leading General Contractors in Westerville

More Discussions

Anyone get their plants from Grace Rose Farm yet?

228

Desert sky from HCR

9

Eden Balling After Rain

4

Swamp rose advice

1

Florentina a very nice red rose

20