Metaphosphoric acid is often used as a moisture- or water-absorbing reagent. To prepare one-liter of 5 percent metaphosphoric acid, dilute 59 ml of 85 percent metaphosphoric acid with one liter of distilled water.
there is 5 percent acid in bleach
5 to 10 percent should come from linoleic acid.
5 percent
x=45
Vinegar is made of 5% food grade acetic acid, ethanoic acid, CH3-C(=O)(-OH)
5g TCA per 100ml of water
Vinegar contains about 5–20% acetic acid (CH3COOH), water and flavourings.
Normal vinegar is approximately 5-10% acetic acid.
To make a 5% diluted acetic acid solution, you would mix 1 part of the 99% acetic acid solution with 19 parts of water (since 1 part acetic acid solution + 19 parts water = 20 parts total solution, and 1/20 = 5%). This will result in a 5% acetic acid solution.
Vinegar is acetic acid diluted to 5 or 10 percent with water, so that you won't burn your mouth if you drink pure acetic acid.
To prepare a 5% potassium iodide solution, weigh 5 grams of potassium iodide and dissolve it in 100 mL of water. Stir until the potassium iodide is completely dissolved to achieve a 5% solution.
Answer:170mL of 5% acid solution and 30mL of 25% solution must be mixed to produce 200mL of a 8% acid solutionLet x = 5% acid solutiony = 25% acid solution Equations:x + y = 200mL ----equation (1)0.05x + 0.25y = 0.08 * 2000.05x + 0.25y = 16multiplying by 1005x + 25y = 1600 ----equation (2)eliminating equations (1) and (2)-5(x + y = 200)-5-5x -5y = -10005x +25y = 1600=========20y = 600y=30substitute x=30 to equation (1)x + 30 = 200x = 200 - 30x = 170thus 170mL of 5% solution and 30mL of 25% solution must be mixed to produce 200mL of a 8% acid solution