User Account

All Pages

Explain the hydroxide ion concentration of an aqueous

Assignment Help Chemistry
Reference no: EM13507189

What is the hydroxide ion concentration of an aqueous 0.00364M caffeine solution? The most basic nitrogen atom in caffeine has aKb of 4.1x10-4.

Reference no: EM13507189

Questions Cloud

What is the rate of heat conduction through the floor : The subfloor on which the flooring sits is at a temperature of 16.1 degree C, while the air in the room is at 19.2 degree C. What is the rate of heat conduction through the floor
Explain cacl2 is used to lower the freezing point of water : CaCl2 is used to lower the freezing point of water on streets and sidewalks. Assuming it forms an ideal ionic solution, how many grams of CaCl2 must be added to 1.50 kg of water to lower the freezing point of the mixture to -2.00* C? Kf for water ..
What is the effective annual rate of the loan : A firm engaged a one-year monthly pay $100,000 line of credit at 7.5 percent plus a 0.5 percent commitment fee on the unused portion of the line
Determine how much ice melted : 398 g of water at 64°C is added to ice at 0°C. If the final temperature of the system (which you can assume is isolated) is 0°C, determine how much ice melted
Explain the hydroxide ion concentration of an aqueous : What is the hydroxide ion concentration of an aqueous 0.00364M caffeine solution. The most basic nitrogen atom in caffeine has aKb of 4.1x10-4.
Determine the buoyant force on the rock : A rock weighing 8528 N rock with a volume of 24 L is completely submerged in mercury. The density of mercury is 13.6 kg/L. Determine the buoyant force on the rock
Discuss the classification of current assets : Discuss the classification of current assets and current liabilities in the context of preparing the balance sheet and how the same asset or liability may be classified differently by different companies (provide an example to illustrate).
What is the largest mass the ropes can support : The two angled ropes used to support the crate in the figure below an withstand a maximum tension of1400Nbefore they break. What is the largest mass the ropes can support
Explain the density of a metal and length of the unit cell : Many metals pack in cubic unit cells. The density of a metal and length of the unit cell can be used to determine the type for packing. For example, platinum has a density of 21.45 g/cm3 and a unit cell side length

Reviews

Write a Review

Chemistry Questions & Answers

  Rate of a reaction the longer it takes to reach completion

Select all of the correct statements about reaction rates from the choices below. The lower the rate of a reaction the longer it takes to reach completion.

  Calculate the rate of energy transfer

a chemical reaction produces 653,550 kJ of energy as heat in 142.3 mins. Calculate the rate of energy transfer in kilojoules per minute.

  Calculate the average mass per hcl molecule

The molar mass of HCl is 36.5 g/mol, and the average mass per HCl molecule is 36.5 amu. Use the fact that 1 amu = 1.6605 * 10-24g to calculate Avogadro's number.

  Draw the flow of e- and the products of the methoxide ion

Draw the flow of e- and the products of the Methoxide Ion and water including formal charges on all compounds.

  Define what nacl concentration

What NaCl concentration results when 219 mL of a 0.740 M NaCl solution is mixed with 492 mL of a 0.350 M NaCl solution?

  Calculate the bicarbonate and carbonate alkalinities

Calculate the bicarbonate and carbonate alkalinities, in mg/L as CaCO3 , of a water having a total alkalinity of 233.0mg/L as CaCO3 and a ph of 10.47?

  Explain increasing the surface area of mno2(s)

This exothermic reaction is catalyzed by MnO2(s). 2H2O2(aq) => 2 H2O(l) + O2(g) Which of the following will increase the rate of this reaction? 1. Raising the temperature 2. Increasing the surface area of MnO2(s)

  Explain what is the molarity of the naoh

A 32.5 mL sample of NaOH solution was titrated with 64.23 mL of a 1.25 M HCl solution to the equivalence point. What is the molarity of the NaOH

  Explain naoh when titrated to a phenolphthalein end point

A 0.5000-g sample containing NaHCO3, Na2CO3, and H2O was dissolved and diluted to 250.0 mL. A 25.00-mL aliquot was then boiled with 50.00 mL of 0.01255 M HCl. After cooling, the excess acid in the solution required 2.34 mL of 0.01063 M NaOH when t..

  Explain conjugate pairs of acids and bases

Conjugate Pairs of Acids and Bases, What is the base if the acid is H2PO4- and the equation of the pair?

  Calculate the vapor pressure of a solution of glycerol

calculate the vapor pressure of a solution of glycerol of 265ml in 3.80x10^2ml of H2O at the normal boiling point of H2O

  A compound contains only carbon hydrogen and oxygen

a compound contains only carbon hydrogen and oxygen. combustion of 0.01068 g of the compound yields 0.01601 g of co2

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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