Compute the ratio and predict the color a phenolphthalein

Assignment Help Chemistry
Reference no: EM13170887

Phenolphthalein has a pKa of 9.7. It is colorless in its acid form and pink in its basic form. For each of the pH's listed, calculate the ratio and predict the color of a phenolphthalein solution.

a. pH = 2.0

b. pH = 5.0

c. pH = 8.0

d. pH = 11.0

Reference no: EM13170887

Questions Cloud

Describe why a less reactive halogen is isolated : explain why a less reactive halogen is isolated in the dichloromethane
Determine the end value of n for an electron transition : Determine the end value of n for an electron transition in a hydrogen atom if the electron starts in n=4 and the atom emits a photon of light with a wavelength of 486 nm.
Create a complicated molecule from simpler molecules : Although glucose is a more complicated molecule than CO2 and H2O, there is enough entropy in the O2 products to make the reaction generate entropy overall.
State the pressure of the water vapor at a temperature : What is the pressure of the water vapor at a temperature of 250.0 degreee Celcius.
Compute the ratio and predict the color a phenolphthalein : Phenolphthalein has a pKa of 9.7. It is colorless in its acid form and pink in its basic form. For each of the pH's listed, calculate the ratio and predict the color
Global warming and the greenhouse effect : What is the expected rise in sea level by the year 2050 and discuss at least three major ways this will affect islands or coastal areas.So much has been put out in the media about global warming and the "greenhouse effect".
Formed elements and the plasma contains : In a centrifuged blood sample, the buffy coat between the formed elements  and the plasma contains
State bromide ion in a saturated solution in equlibrium : If the concentration of bromide ion in a saturated solution in equlibrium with PbBr2 solid is determined to be .0125M what is the solubility of PbBr2
The cells in the testes that produce testosterone are called : The cells in the testes that produce testosterone are called

Reviews

Write a Review

Chemistry Questions & Answers

  Explain and identify any intermediatesin the mechanism

identify any intermediatesin the mechanism. write the rate law for each elementary reactionin the mechanism. D) if the first step is slow and the second one is fast

  What volume of gas will be produced

1.00 g of NH4Cl (s) is completely decomposed by heating to 325 °C at 1.00 atm. What volume of gas will be produced? NH4Cl (s)= HCl(g) + NH3(g)

  Explain hazardeous chemical in the lab from below ammonia

Find the name of hazardous chemicals and write formula and how will handle these hazardeous chemical in the lab from below ammonia, bleach, dish detergent, hand sanitizer, hand soap, lemon juice, shampoo, codium bicarbonate, vinegar, sodium hydrox..

  What would be the amount of heat released

calorimetry can be used to find heats of combustion. suppose a calorimeter helps someone to determine that 4032 kj of heat is released during the combustion of 88.0 grams of propane, C3H8 (44.0 g/mol).

  How much heat would be released by its complete combustion

If a bottle of nail polish remover contains 181 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788 g/mL.

  Calculate the mass of honh2 required to dissolve

Calculate the mass of HONH2 required to dissolve in enough water to make 250.0 ml of solution having a pHof 10.00 (Kb=1.1*10 (-8).

  Calculate difference in pressure between methane & ideal gas

12.0 moles of gas are in a 5.00 L tank at 23.9 C. Calculate the difference in pressure between methane and an ideal gas under these conditions.

  Explain fumaric acid requires a much higher temperature

When maleic acid is heated to about 100C it forms maleic anhydride, however fumaric acid requires a much higher temperature (250-300C) before it dehydrates

  What is the density of the metal

A piece of metal with a mass of 151 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 35 mL. What is the density of the metal?

  Determine the number of bromine molecules present

A flask contains 0.330 mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask.

  How many grams of co2 would be in the container

A container consists of CO2 gas at a temperature of 15 C and at a pressure of .990 atmospheres. The volume of the container is 500 mL. How many grams of CO2 would be in the container?

  Explain study of a first-order reaction

Study of a first-order reaction, In the study of a first-order reaction, A--->B, it is found that A/Ao=0.125 after one hour. The system initially consisted of 0.20 mole of a gaseous A at 25 degrees C and 1 atm

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd