How many grams of dry nh4cl need to be added

Assignment Help Chemistry
Reference no: EM13171175

How many grams of dry NH4Cl need to be added to 2.00 of a 0.100 M solution of ammonia, , to prepare a buffer solution that has a of 8.64? Ka for ammonia is 1.8*10^-5.

Reference no: EM13171175

Questions Cloud

How many moles of cn- ions will be contained : A 265 mL stock solution contains 2.3 M Ca(CN)2. When 105 mL of the stock solution is diluted to 120 mL, how many moles of CN- ions will be contained in the dilute solution?
How many kilocalories are released by freezing h2o : converting liquid water to solid ice releases 1.44 kcal/mol.
Prepare the appropriate eliminating entries for transaction : Prepare the appropriate eliminating entries for this transaction which would appear on the year-end December 31, 2005 worksheet.
What is the concentration of the acetic acid : A 10.0 mL sample of vinegar, an aqueous solution of acetic acid (HC2H3O2), is titrated with 0.5062 M NaOH, and 16.58 mL is required to reach the equivalence point. What is the concentration of the acetic acid?
How many grams of dry nh4cl need to be added : How many grams of dry NH4Cl need to be added to 2.00 of a 0.100 M solution of ammonia, , to prepare a buffer solution that has a of 8.64? Ka for ammonia is 1.8*10^-5.
How many calories of heat energy were absorbed : Some velomobile seats have been designed to hold ice packs inside their cushions. If you started a ride with ice packs that held 1700 g of frozen water at 0 degrees C , and the temperature of the water at the end of the ride was 32 degrees C.
What is the bond order : Construct the MO diagram for Cr(CO)5, considering only s donation from the CO ligands. Clearly label all atomic and molecular orbitals. Put in the correct number of electrons. What is the bond order? Is this consistent with the structure?
Calculate the enthalpy change per mole of baso4 formed : Assuming that the calorimeter absorbs only a negligible quantity of heat and that the density of the final solution is 1.0 g/mL, calculate the enthalpy change per mole of BaSO4 formed.
How many photons are required to heat : Suppose that the microwave radiation has a wavelength of 12.4cm . How many photons are required to heat 295mL of coffee from 25.0 C to 62.0 C ? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J(gxK) , as..

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the expected change in temperature

Calculate the expected change in temperature for 4.5 g of NH4NO3 dissolved in 100.0 mL of H2O. Assume that the calorimeter absorbs no heat.

  What is the minimum mass of nahco3 that must be added

If 24 mL of 6.2 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?

  How many moles of ba(oh)_2 are present

How many moles of Ba(OH)_2 are present in 255 mL of 0.800 it M Ba(OH)_2?

  Write the lewis symbol for hydrogen sulfide

write the lewis symbol for hydrogen sulfide, distributing the remaining valence electrons so that the hydrogen atoms are in accordance with the duet rule and the sulfur atom is in accordance with the octet rule.

  What would the partial pressure of oxygen and of nitrogen be

if you lived in the mountains where the atmospheric pressure is 685 mm Hg, what would the partial pressure of oxygen and of nitrogen be ?

  Determine the order of reaction

at 400 K, the rate of decomposition of a gaseous compound initially at a pressure of 12.6 kPa, was 9.71 Pa/s when 10.0 % had reacted and 7.67 Pa when 20.0 % had reacted.Determine the order of reaction.

  Determine the volume of oxygen

Find the volume of oxygen - What volume of oxygen is needed to completely combust 2.07 L of methane gas

  Define a solution of acid is titrated with naoh

A solution of acid is titrated with NaOH. Give the net ionic equation for this reaction. 2. Determine the pH for the following solutions, and identify them as acidic, basic, or neutral.

  Explain what do these extrapolated values mean

When we extrapolate concentration dependent values to zero solute concentration, what do these extrapolated values mean physically

  How many grams of carbon dioxide will form

If 1.00 g sodium bicarbonate and 1.00 g citric acid are allowed to react, how many grams of carbon dioxide will form?

  What species can from in the flask during irradiation

A flask containing gaseous N2 is irradiated with 25 nm light. The irradiated moleculars of N2 can absorb the energy from the light photons. Using the following information indicate what species can from in the flask during irradiation.

  Calculate the unknown concentration for the analyte noted

calculate the unknown concentration for the analyte noted as (xM) from the potential data given at 25 oC Pt/Fe 2+ (0.05 M)//Ag+ (xM) /Ag.

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