Explain how many grams of dry nh4cl need to be added

Assignment Help Chemistry
Reference no: EM13302211

How many grams of dry NH4Cl need to be added to 1.60L of a 0.700M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.98? Kb for ammonia is 1.8X10^-5 Express your answer (mass of NH4Cl) numerically in grams to three significant figures.

Reference no: EM13302211

Questions Cloud

What is the cross-rate of swiss francs to euros : Suppose the exchange rate between U.S. dollars and Swiss francs is SF 1.41 = $1.00, and the exchange rate between the U.S. dollar and the euro is $1.00 = 1.64 euros. What is the cross-rate of Swiss francs to euros?
Explain what was the purpose of the water : In the reaction between p-aminophenol and aetic anhydride to form acetaminophen, 0.450 mL of water was added. What was the purpose of the water
Determine the binding energy of the earth-boulder system : A 658-kg boulder is dropped into a mine shaft that is 2.1 x 103 m deep. During the boulder's fall, the system consisting of the Earth, Determine the binding energy (in Joules) of the Earth-boulder system
Find critical depth in trapezoidal channel with bottom width : Determine the critical depth in a trapezoidal channel with a 20 foot bottom width and 3:1 (H:V) side slopes if the Q = 1000cfs.
Explain how many grams of dry nh4cl need to be added : How many grams of dry NH4Cl need to be added to 1.60L of a 0.700M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.98 Kb for ammonia is 1.8X10^-5 Express your answer (mass of NH4Cl) numerically in grams to three significant ..
Find the maximum deflection angle for the large ball : A 10.0 kg ball rests suspended by the 5.0 m long weightless string. find The maximum deflection angle for the large ball
Determine what diameter pipe would be recommend : A circular concrete pipe (n = 0.012) carries a discharge of 450 cfs with a slope of 0.008 and is designed to run no more than 60% full (by depth). What diameter pipe would you recommend
Explain what''s a net zero molecular dipole moment : What's a net zero molecular dipole moment. and explain specifically why does [IF2]- have a net zero molecular dipole moment
What is the seperation between the two wires : A wire of length, L, and mass density, ?, is positioned parallel to and directly over another much longer wire. what is the seperation between the two wires

Reviews

Write a Review

Chemistry Questions & Answers

  Explain what is the concentration of the haso42

Arsenic Acid (H3AsO4) has Ka values of 2.5*10^-4, 5.6*10^-8, and 3*10^-13. What is the concentration of the HAsO42- dianion in a solution

  What quantity of heat energy transfer is needed to vaporize

What quantity of heat energy transfer is required to vaporize 0.500 mL of mercury at 357 °C, its normal boiling point? The density of Hg (l ) is 13.6 g/mL.

  Find the molar flow rate of reflux

suppose the condenser operates as a total condenser at 40 degrees, the production rate of the overhead product is 75kmol/h. The ratio of reflux and overhead product is 1.5:1.

  Define what sample size is required to reduce the sampling

A box contains 12600 red marbles and 885000 yellow marbles. What sample size is required to reduce the sampling standard deviation of red marbles to 1.85%?

  Calculate the molar mass of x2co3

26.0cm of a solution containinh 1.86g of X2CO3 in 250 reacted completely with 27.0cm of solution contain 3.65g of HCL per dm,calculate the molar mass of X2CO3 and relative atomic mass of X, and identify X.

  What mass of calcium oxide is required daily to eliminate

If the coal is burned in a power plant that uses 1900 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide?

  What will the new pressure inside the piston be

if i have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 liter what will the new pressure inside the piston be?

  Define potential of ph electrodes can vary

Because the potential of pH electrodes can vary, it is necessary to CALIBRATE a pH electrode before use. For many uses, a two-point calibration procedure is appropriate.

  How many moles of cl2 form

4HCl + MnO2 = MnCl2 + 2H2O + Cl2 When 1.22 mol of HCl reacts with excess MnO2, how many moles of Cl2 form?

  Explain the acceleration due to gravity

an area of 1.15 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column?

  Find out the stack-gas concentration in units of micro grams

The sulfur dioxide stack gas concentration from fossil fuel combustion is 2ppm(v). Determine the stack-gas concentration in units of micro grams/m^3 assume 0 degrees Celsius and1atm.

  Explain what is the absorbance of the resulting solution

a solution that contains 5.94 ppm iron(III) is treated with an appropriate excess of KSCN and is diluted to 50 ml. What is the absorbance of the resulting solution at 580 nm in a 2.5 cm cell

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