![youngsiron](/avatars/10845.jpg)
youngsiron
19.12.2020 •
Chemistry
PAGE:
DATE:
What is the
pH of
500ml
aqueous solution
Containing 150mg NaOH
Solved
Show answers
More tips
- S Style and Beauty Ultimate Guide on How to Care for Suede Shoes...
- S Sport Running: How to Do It Right?...
- F Food and Cooking How to Cook Spaghetti Right – Secrets and Tips...
- P Philosophy Personal attitude towards Confession: how to prepare and undergo the procedure correctly?...
- H Health and Medicine Flu: How to Recognize It by the First Symptoms?...
- F Food and Cooking How to Sober Up Quickly? Important Facts and Tips...
- H Health and Medicine How to Properly Take a Blood Sugar Test?...
- H Health and Medicine Simple and Effective: How to Get Rid of Cracked Heels...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
Answers on questions: Chemistry
- C Chemistry The radioactive isotope used in the dating of fossils thought to be less than 40,000 years old is . Fill in the blank....
- C Chemistry If Uranus has areas of ice crystals high in its atmosphere, how would its appearance change?...
- C Chemistry What is the value of index fossils to the fossil record?...
- C Chemistry A solution of benzene in methanol has a transmittance of 93.0 % in a 1.00 cm cell at a wavelength of 254 nm. Only the benzene absorbs light at this wavelength,...
- C Chemistry ¿ que uso e damos ala tecnología en nuestra vida diaria ? ¿que impacto tendría el no contar con la tecnología? ¿cuales son las nuevas tecnologías? ayúdenme por...
- C Chemistry A thermometer is placed in water in order to measure the water’s temperature. What would cause the liquid in the thermometer to drop? The molecules in the water...
- C Chemistry Describe how the Bohr model explains both of these observations....
- C Chemistry Aluminum has a frequency threshold of 9.846 × 1014 Hz. Which best explains what will happen when light with a frequency below the frequency threshold strikes aluminum?...
- C Chemistry The graph illustrates Law. At any point on the curve, the product of P (pressure) x V (volume) is . A) Boyle s; constant B) Boyle s; decreasing C) Charles ; decreasing...
- C Chemistry Consider the reaction below. Which is the net ionic equation for the reaction?...
Ответ:
sorry
Explanation:
Ответ:
10.11 mL
Explanation:
Given that :
Total volume of decolorizer = 500 mL
A common recipe is equal parts 95% ethanol and acetone.
So;
The volume of 95% ethanol in the decolorizer = 500mL/2 = 250 mL
Let represent V(ml) for the 99% of ethanol needed to make 95% of the 250 mL of ethanol;
Therefore:
V(ml) × 0.99 = 250 × 0.95
V(ml) × 0.99 = 237.5
V(ml) = 237.5/0.99
V(ml) = 239.89 mL
Hence; the amount of water to be added to 95% of ethanol = ( 250 - 239.89 )mL = 10.11 mL