The pH of buffer solutions.

Weight of NaC2H3O2*3H2O =3.47g

pH of original buffer soution = 4.53

pH of buffer + HCl = 3.94

pH of buffer + NaOH = 5.00

Additional details: approximately 8.8 mL of 3M acetic acitd was added to the 3.47g of NaC2H3O2*3H2O. And approximately 56.0mL of distilled water. (This makes the buffer solution) This solution was then split in half. To one half 1 mL of 3M HCl was added. To the second half 1mL of 3M Na OH was added.

Calculate the pH of buffer.

Calculate the pH of buffer + HCl

Calculate the pH of buffer + NaOH

Please show all calculations and work.

please help me. I confused

A fictional company has been producing propene oxide, C3H6O, from propene, C3H6, with a 96.0% yield. The process requires the use of a compound called m-chloroperoxybenzoic acid, C7H5O3Cl, which can be abbreviated as mCPBA. The entire reaction takes place in the solvent dichloromethane, CH2Cl2:

C3H6+C7H5O3ClCH2Cl2−−−⟶96.0% yieldC3H6O+C7H5O2Cl

The initial propene concentration in the solvent is 21.0 g/L.

Consider the prices of the following substances.

Also consider that the cost of waste disposal is $5.00 per kilogram of propene oxide produced.

A relatively simple way of estimating profit is to consider the the difference between the cost (the total spent on materials and waste disposal) and the earnings (the price at which the product can be sold).

Calculate the profit from producing 26.00 kg of propene oxide.

Calculate (a) the saturation magnetization and (b) the saturation flux density for nickel, which has a density of 8.90 g/cm3. Solve by deriving the various equations step-by-step

While you might improve the trimystrin yield by changing the solvent, what untended consequence might also occur? (deals with recrystallization of nutmeg)

Calculate the pH of the solution after the addition of the following amounts of 0.0656 M HNO3 to a 50.0 mL solution of 0.0750 M aziridine. The pKa of aziridinium is 8.04. a) Volume of Hno3 equal to half the equivalence point volume b)53.7mL of HNO3 c) Volume of Hno3 equal to the equivalence point

Determine the [OH?] of a solution that is 0.100M in F- also find the pH of this solution

I get 1.2*10^-6 but it's not right. for the [OH]

Please explain questions are on finals and really need to understand the process.

If a solution containing 45.156 g of mercury(II) chlorate is allowed to react completely with a solution containing 14.334 g of sodium sulfate, how many grams of solid precipitate will be formed?

How many grams of the reactant in excess will remain after the reaction?

for the reaction pcl5(g) ------ pcl3(g)+cl2 (g)

K = 0.050 at 150 C. A quantity of pcl5 is placed in a 5 liter container at 150 C when equilibrium is established, the container holds 0.50 moles of cl2. How many moles of pcl5 were originally placed in the container?

Why do phospholipids form a lipid bilayer rather than micelles in water? What are the thermodynamic driving forces (considering enthalpy and entropy) for this structure?

Calculate the values of Delta G and Ecell for the following reaction, label the half reactions as anode and cathode.

2Ag(s) + Cu²⁺ (aq) > 2 Ag⁺ (aq) + Cu(s)

* My main question lies in which is cathode and anode...it seems that the Ag half reaction (2Ag(s) > 2Ag⁺ +2e-) signifies Ag(s) loosing electrons causing the positive reactant, this leads me to think loss of electrons/this is the oxidation half reaction, therefore Ag(s) is the reduction agent and anode with a given appendix value of 0.800V, BUT when I look at my professors notes he signifies that the Cu²⁺(aq) half reaction (Cu²⁺  + 2e- > Cu(s)) is the anode with a appendix value of 0.342V.

To me the Cu²⁺ gains electrons and is the reduction reaction/cathode - why am I wrong, is it because the Ag value is the more positive of the two? and if this is so... When am I to determine the cathode/anode label with the "more positive" logic?

WORD BANK

a. Aqueous Solutions

b. Colligative Properties

c. Concentrated Solution

d. Dilute Solution

e. Electrolytic Solution

f. Hydration

g. Immiscible

h. Insoluble

i. Miscible

j. Molality (m)

k. Molarity (M)

l. Non-electrolyte Solution

m. Osmotic Pressure

n. Osmosis

o. Percent by mass

p. Percent by volume

q. Recrystallization

r. Salvation

s. Saturated

t. Semipermeable Membrane

u. Solubility

v. Soluble

w. Solute

x. Solution

y. Solvent

z. Supersaturated Solution

aa. Unsaturated

Use the Vocabulary words above to complete the following sentences words can be used more than once, some words are not be used.

A ___________ is an intimate homogeneous mixture of a solute and a solvent.

The substance being dissolved in a solution is the __________.

The substance whose physical state is retained is the __________.

If a solute will dissolve in a given solvent it is said to be ________ in that solvent.

If the solute does not dissolve in the solvent the solute is _________.

The __________ of a substance is a measure of how much solute will dissolve in a given quantity of solvent at a specific temperature.

When two liquids dissolve in each other they are __________; if they do not, then they are ________.

A ___________ __________ is one that has a relatively large amount of solute dissolved in it.

A ___________ ___________ has a relatively small amount of solute dissolved in it.

The process by which water molecules surround the ions of the solute is called __________, for any other solvent except water the term is ________.

A solution at a given temperature that exists in dynamic equilibrium with undissolved solute is said to be ___________.

When a solution contains less solute than the solubility limit, it is said to be _____________.

A ____________ _______ contains more than the maximum amount of solute for a given temperature.

A solution containing a solute that dissociates into ions is called an __________ ___________.

A solute that dissolves into nonconductive particles is called a____________ ____________.

A common way to purify a mixture of two solids that have different solubilities is called __________.  

#3-c Post-lab exp. 24

3. Concerning the applicability of the titration method, comment on if and how you could use it to determine K_sp for the following:

c. copper (II) iodate

An ideal gas (which is is a hypothetical gas that conforms to the laws governing gas behavior) confined to a container with a massless piston at the top. (Figure 2)  A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 4.90 to 2.45L . When the external pressure is increased to 2.50 atm, the gas further compresses from 2.45 to 1.96L .

In a separate experiment with the same initial conditions, a pressure of 2.50 atm was applied to the ideal gas, decreasing its volume from 4.90 to 1.96L in one step.

If the final temperature was the same for both processes, what is the difference between q for the two-step process and q for the one-step process in joules?

Express your answer with the appropriate units.