Questions
describe the fundaments of the IR following technique (what do you use it for?)

describe the fundaments of the IR following technique (what do you use it for?)

In: Chemistry

How do you rate the acidity from highest to lowest for acids ( carboxylic acids and...

How do you rate the acidity from highest to lowest for acids ( carboxylic acids and alcohol) ?

How do you rate nucleophilic strength ?

How do you rate the reactivity of a carbonyl receiving a backside attack?

how do you rate the boiling points of carboxylic acids, amides, esters, alcohols

rank solubility of carbaldehyde , carboxyilic acid ester in water

In: Chemistry

Give the concentration of each ion present in the solution formed by mixing together these two...

Give the concentration of each ion present in the solution formed by mixing together these two solutions desribed. 51.7 mL of 0.175 M Fe(NO3)3 and 23.7 mL of 0.509 M CaCl2

In: Chemistry

Can I get all of the question answered in a way that I know under which...

Can I get all of the question answered in a way that I know under which sub question the answer goes please.

Can I get all of the questions answered in a way that I know how it fits in the question. Some parts are explanations. Thank you.

Q. When a pink aqueous solution of potassium permanganate, faintly acidified with dilute sulfuric acid was treated with 10% aq. hydrogen peroxide, the reaction took place with the evolution of gas bubbles, and the pink solution was turned colorless. Further chemical analysis revealed that the evolved gas was oxygen, and the resulting solution contains potassium sulfate and manganese (II) sulfate; water was also formed during the same reaction. Please answer the followings:

1) Write down the balanced chemical equation for this reaction.

2) Define the type/types of the reaction; assign the oxidation number of Manganese in potassium permanganate and manganese (II) sulfate. Also, offer an explanation for the color change.

3) Write down the ions present in the solution before & after the reaction. If 100 mL 0.5 M potassium permanganate was mixed with 50 mL 2 M sulfuric acid, what will be the final pH (>7 or <7) of the solution?

4) After the completion of reaction, when evolution of gas-bubbles ceased, what will happen if an aqueous solution of sodium carbonate was added to the reaction mixture? Please write down the net ionic equation.

5) If initially 5.65 g of potassium permanganate was taken for the reaction, calculate the total mass of manganese (II) sulfate present in the solution after the completion of the reaction. What is the Manganese ion concentration of the solution (assume that the total volume of the final reaction mixture is 500 mL)?

Useful hints: hydrogen peroxide is a strong oxidizing agent and considered to be a molecular compound.

In: Chemistry

What is a “functional group” ? Explain why infrared spectroscopy can often be used to detect...

What is a “functional group” ? Explain why infrared spectroscopy can often be used to detect the presence of a functional group in a molecule

In: Chemistry

The standard half-cell potential for the reaction O2(g)+4H+(aq)+4e−→2H2O(l) is +1.229 V at 298.15 K. The aO2...

The standard half-cell potential for the reaction
O2(g)+4H+(aq)+4e−→2H2O(l) is +1.229 V at 298.15 K.
The aO2 = 1.00 assuming that the aH+ is equal to the molality.

Part A

Calculate E for a 0.100-molal solution of H2SO4 for aO2 = 1.00 assuming that the aH+ is equal to the molality.

Part B

Calculate E for a 0.100-molal solution of H2SO4 for aO2= 1.00 using the measured mean ionic activity coefficient for this concentration from the data tables in the textbook.

Part C

How large is the relative error if the concentrations, rather than the activities, are used?

In: Chemistry

A 24.7-g sample of white phosphorus was burned in excess of oxygen. The product was dissolved...

A 24.7-g sample of white phosphorus was burned in excess of oxygen. The product was dissolved in enough water to make 549 mL of solution. Calculate the pH of the solution at 25 C

In: Chemistry

Hydrogen sulfide decomposes according to the following reaction,for which Kc = 9.30 multiplied by 10-8 at...

Hydrogen sulfide decomposes according to the following reaction,for which Kc = 9.30 multiplied by 10-8 at 700°C. 2 H2S(g) reverse reaction arrow 2H2(g) + S2(g) If 0.29 mol H2S is placed in a 3.0 L container, what is the equilibrium concentration of H2(g) at 700°C?

In: Chemistry

Why is the O-H and the N-H hydrogens not visible on the H NMR of p-aminophenol...

Why is the O-H and the N-H hydrogens not visible on the H NMR of p-aminophenol reactant and acetaminophen product?

In: Chemistry

3. C (s) + H2O (g) → CO (g) + H2 (g) Le Châtelier's principle predicts...

3. C (s) + H2O (g) → CO (g) + H2 (g) Le Châtelier's principle predicts that increasing the volume of the reaction vessel will ________.

In: Chemistry

For a club that i am part of. we are making batteries using zinc, copper, activated...

For a club that i am part of.

we are making batteries using zinc, copper, activated charcoal, and water ( at the moment, but we are not limited to these materials)

Due to the size constraint of the battery, we are running into the problem of not enough O2 to support a long load (we think) and we are trying figure out a way to get more O2 into the battery while still keeping enough pressure on the copper and zinc between the plates without "starving it".

In: Chemistry

suggest an explanation following- The Cr and Ni content of stainless steels used to make knife...

suggest an explanation following- The Cr and Ni content of stainless steels used to make knife blades is different from that used in the manufacture of spoons.

In: Chemistry

1. Sketch diagrams of a gas chromatograph and a high performance liquid chromatograph. Label all the...

1. Sketch diagrams of a gas chromatograph and a high performance liquid chromatograph. Label all the parts and describe their use in one sentence each. Why is HPLC so important to modern industrial chemistry?

In: Chemistry

If i have 1,000,000 gallons of water at a pH of 4.45 how many pounds of...

If i have 1,000,000 gallons of water at a pH of 4.45 how many pounds of NaOH are need to raise this water to a pH of 7.8?

Please show work.

In: Chemistry

Phosphoric acid, H3PO4(aq), is a triprotic acid. Calculate the pH and concentrations of H3O + (aq),...

Phosphoric acid, H3PO4(aq), is a triprotic acid. Calculate the pH and concentrations of H3O + (aq), H3PO4(aq), H2PO4 − (aq), HPO4 2− (aq), PO4 3− (aq), and OH− (aq) in a 0.100-M phosphoric acid solution at 25°C.

In: Chemistry