User Account

All Pages

What is the ph of the buffer

Assignment Help Chemistry
Reference no: EM131784240

A buffer is prepared by adding 5. g of ammonia, NH3, and 20.0g of ammonium chloride, NH4Cl, to enough water to form 2.50 L of solution.

a) What is the pH of the buffer?

b) Write the complete ionic equation for the reaction that occurs when a few drops of nitric acid are added to the buffer.

c) Write the complete ionic equation for the reaction that occurs when a few drops of potassium hydroxide solution are added to the buffer.

Reference no: EM131784240

Questions Cloud

What is the amount of contribution margin per unit : At that volume, general, selling and administrative costs amount to $250,000 of which $70,000 are fixed costs. What is amount of contribution margin per unit?
Compute the direct material price and quantity variances : Compute the direct material price and quantity variances, the direct labor rate and efficiency variance, the variable overhead spending
What is the companys contribution margin per unit : At its $60 selling price, Atlantic Company has sales of $15,000, variable manufacturing costs of $4,000. What is the company's contribution margin per unit?
Determine the finite element equation of motion : For the beam of Figure, determine the finite element equation of motion.
What is the ph of the buffer : a) What is the pH of the buffer? b) Write the complete ionic equation for the reaction that occurs when a few drops of nitric acid are added to the buffer.
Conjugate acid of ephedrine : What pH would you expect for 0.035 M solution of ephedrine, assuming that no other substances are present? What is the value of pKa for the conjugate acid?
Which types of adjusting entries are natural opposites : Which types of adjusting entries are natural opposites? Which of the following statements about accrual and cash-basis accounting is most accurate?
Discuss important to a businesss success than planning : Little is more important to a business's success than planning. Setting financial goals and documenting those plans is called budgeting
Prepare a multiple-step income statement : Prepare a multiple-step income statement and a retained earnings statement for the year ended, as well as a classified balance sheet as of December 31, 2010

Reviews

Write a Review

Chemistry Questions & Answers

  Define what is the rate constant for the reaction

The frequency factor A for a certain reaction at 75oC is 8.7 x 1012 s-1, and the activation energy 63 kJ/mol. What is the rate constant for the reaction at that temperature

  Explain what is the molar mass of the compound

If an aqueous solution of certain organic compound has a density of 1.063g/mL, an osmotic pressure of 12.16atm at 25o C, and a freezing point of -1.03 o C. The compound is known not to dissociate in water. Explain what is the molar mass of the com..

  State potassium hydrogen phthalate is used as a primary acid

Potassium hydrogen phthalate (KHP) is used as a primary standard acid to accurately find out the molarity of a NaOH solution via a titration. The formula of KHP is KHC8H4O4 and has a molar mass of 204.23 g/mol.

  How much heat will be deposited in the room

Suppose a reversible heat pump transfers heat from the outdoors at 0 degrees C to a room at 20 degrees Celsius. For each Joule of work input to the heat pump, how much heat will be deposited in the room?

  The pathway for oxidation of oleate

Question- Draw (with structures, cofactors, co-enzymes, enzyme names, etc) the pathway for oxidation of oleate CoA to 9 acetyl CoA molecules (oleate is activated by a thioester-linkage to CoA).

  The zinc blende structure

Gallium arsenide (GaAs) has the zinc blende structure. The gallium atoms are in FCC packing and the arsenic atoms occupy half the tetrahedral sites. Calculate the density of Gallium arsenide (GaAs)

  Write the bronsted-lowry chemical equation

Write the Bronsted-Lowry chemical equation describing how C2H5NH2 behaves when add to water. Indicate whether C2H5NH2 behaves as an acid or a base

  What is the molecular formula of the gas in the sample

A 1.17 g sample of an alkane hydrocarbon gas occupies a volume of 674 mL at 28°C and 741 mmHg. Alkanes are known to have the general formula CnH2n+2.

  What is the uncertainty in the momentum

what is the uncertainty in the momentum of an electron if its position has been determined to an accuracy of ±10 poco meters?

  Explain how many moles of potassium iodate remain

The fragment is dissolved in 50.00 mL of (H_{2}SO_{4}) solution is then treated with 2 g of Kl and 50.00 mL of the potassium iodate solution (1L of 0.01000M solution requires 2.14g of potassium iodate).

  Determine the actual coefficient of performance

Determine the actual coefficient of performance of the heat pump.- The reversed Stirling ASC coefficient of performance for this unit.

  Element to compounds and vice versa

1. What type of process is involved in going from element to compounds and vice versa?

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