(Answered) Part 1 what is the ph of a 018 m solution of methy-

Academics

Part 1: What is the pH of a 0.18 M solution of methy- lammonium nitrate (CH3NH3NO3)? Kb for methylamine (CH3NH2) is 5.0 × 10-4.

Part 2: A 10 mL sample of 0.3 M NH4Cl is titrated with 0.1 M NaOH. What is the pH of the so- lution after 70 mL of NaOH has been added?

Part 3: Which of the following acid-base indicators should be used for the titration of NH3 with HBr? Kb of ammonia is 1.8 ×10-5.

1. Methyl red, color change red/yellow at 4.4 < pH < 6.2

2. Any of these is suitable.

3. Neutral red, color change red/yellow 6.8 < pH < 8.0

4. Phenolphthalein, color change colorless/red-violet 8.0 < pH < 10.0

5. None of these is suitable.

View complete question

Chemistry, Academics

Category:- Chemistry
Reference No.:- M92745249
Price:- $10

Verified Expert

Priced at $20 Now at $10, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Chemistry

Protein folding assignmentin an in vitro protein folding

PROTEIN FOLDING ASSIGNMENT In an "in vitro" protein folding experiment monitored by fluorescence measurements the following data was obtained for protein X: [GuHCl], M Wavelength Maxima, nm 0 330 0.5 332 1.0 331 1.5 332 ...

It takes 378 ml of 02114 m naoh to neutralize 193 ml of an

It takes 37.8 mL of 0.2114 M NaOH to neutralize 19.3 mL of an oxalic acid solution with an unknown concentration. Calculate the actual concentration of this oxalic acid solution. Don't forget to look at the balanced equa ...

Why does a hydrate exist only as a solid what

Why does a hydrate exist only as a solid? What characteristic of a hydrate is responsible for this phenomenon?

An iron skillet weighing 128kg is heated on a stove to

An iron skillet weighing 1.28kg is heated on a stove to 178°C. Suppose the skillet is cooled to room temperature., 21°C. How much heat energyin joules must be removed to effect this cooling? The specific heat of iron is ...

Anbsp00500-molnbspsample of a nutrient substance is burned

A 0.0500-mol sample of a nutrient substance is burned in a bomb calorimeter containing 2.00 × 10 2 g H 2 O. If the molar mass of this nutrient substance is 114 g/mol, what is the fuel value (in nutritional Cal) if the t ...

2k3po4aq3mgcl2aq rarr mg3po42s6kclaqthe molecular equation

2K3PO4(aq)+3MgCl2(aq) → Mg3(PO4)2(s)+6KCl(aq) The molecular equation you determined in Part B is shown above for your convenience. Examine each of the chemical species involved to determine the ions that would be present ...

The earth receives approximately 2 x 1014 kjs of solar

The Earth receives approximately 2 x 1014 kJ/s of solar energy. What mass of solar material is converted into energy each second to produce this much energy

A 41 kg person walking 56 kmhr requires 758 kj of energy

A 41 kg person walking 5.6 km/hr requires 758 kJ of energy per hour. How much further does he have to walk to consume the addition energy contained i 320 g of ground beef relative to 320 g of broiled chicken? The energy ...

Question - the solubility of o2g in water is 443 mg of

Question - The solubility of O 2 (g) in water is 4.43 mg of O 2 /100g H 2 O at 20 o C and 1 atm pressure. What pressure of O 2 (g) would be required to produce a saturated solution that is 0.010 M O 2 ?

A chemist makesnbsp260 ml of silverii A chemist makes 260. mL of silver(II)

A chemist makes 260. mL of silver(II) oxide AgO working solution by adding distilled water to 50.0 mL of a 0.000205 M stock solution of silver(II) oxide in water. Calculate the concentration of the chemist's working solu ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Chemistry Expert