Question

In: Chemistry

Methanol is an ingredient in windshield washer fluid and ingesting as little as 4 mL can...

Methanol is an ingredient in windshield washer fluid and ingesting as little as 4 mL can cause blindness in humans.

In the reaction below, methanol is produced from carbon dioxide and hydrogen gas. If the reaction has a △H rxn = -128 kJ, how much heat is released when 16.8 g CO is reacted?

CO + 2 H2 → CH3OH

  • A. -76.8 kJ

  • B. -128 kJ

  • C. -16.8 kJ

  • D. -0.600 kJ

Magnesium oxidizes via the reaction:

2 Mg + O2 → 2 MgO

The reaction has a △Hrxn = -1203 kJ. How much heat (in kJ) is released when you completely react 3.000 moles of O2?

  • A.

    -401.0 kJ

  • B.

    -1203 kJ

  • C.

    -2406 kJ

  • D.

    -3609 kJ

One way to produce methanol:

CO + 2 H2 → CH3OH

This reaction has a △H rxn = -128 kJ. How much heat (in kJ) is released when you completely react 4.04 g CO?

  • A. -517 kJ

  • B. -14500 kJ

  • C. -128 kJ

  • D. -18.5 kJ

Solutions

Expert Solution

queen_honey_blossom answered 3 years ago
Next > < Previous

Related Solutions

A solution is prepared by dissolving 46.5 mL of methanol in 130.0 mL of water at...
A solution is prepared by dissolving 46.5 mL of methanol in 130.0 mL of water at 25 ∘C. The final volume of the solution is 169.5 mL . The densities of methanol and water at this temperature are 0.782 g/mL and 1.00 g/mL , respectively. For this solution, calculate each of the following. A.) molarity B.)molality C.)percent by mass D.)mole fraction E.)mole percent
A solution is prepared by dissolving 15 ml of methanol in 150.0 ml water at 25...
A solution is prepared by dissolving 15 ml of methanol in 150.0 ml water at 25 degree celsius. Assume the volumes are additive. The densities of methanol and water at this temperature are 0.782 g/ml and 1.00 g/ml, respectively. For the solute , calculete molarity, molality, and more fraction?
A solution is prepared by dissolving 20.2 mL of methanol (CH3OH) in 100.0 mL of water...
A solution is prepared by dissolving 20.2 mL of methanol (CH3OH) in 100.0 mL of water at 25 ∘C. The final volume of the solution is 118 mL. The densities of methanol and water at this temperature are 0.782 g/mL and 1.00 g/mL, respectively. For this solution, calculate each of the following. Part A molarity Express the answer using three significant figures. Part B molality Express the answer using three significant figures. Part C percent by mass Express the answer...
Ethylene glycol, the primary ingredient in antifreeze, has the chemical formula C2H6O2. The radiator fluid used...
Ethylene glycol, the primary ingredient in antifreeze, has the chemical formula C2H6O2. The radiator fluid used in most cars is a half-and-half mixture of water and antifreeze. Part A What is the freezing point of radiator fluid that is 50% antifreeze by mass? Kf for water is 1.86 ∘C/m. Part B What is the boiling point of radiator fluid that is 50% antifreeze by mass? Kb for water is 0.512 ∘C/m.
Ethylene glycol, the primary ingredient in antifreeze, has the chemical formula C2H6O2. The radiator fluid used...
Ethylene glycol, the primary ingredient in antifreeze, has the chemical formula C2H6O2. The radiator fluid used in most cars is a half and half mixture of water and antifreeze. What is the freezing point of radiator fluid that is 50% antifreeze by mass? The Kf for water is 1.86oC/m.  
An antacid tablet, with magnesium hydroxide as the active ingredient, was dissolved in 20.00 mL of...
An antacid tablet, with magnesium hydroxide as the active ingredient, was dissolved in 20.00 mL of 1.0686 M hydrochloric solution. After the tablet completely reacted, the excess hydrochloric acid was titrated with 10.65 mL of 1.0825 M sodium hydroxide. At the completion of the titration, the solution was dark pink. Phenolphthalein was used as the indicator in this experiment. The labeled mass of the magnesium hydroxide is 311 mg per tablet. Show all work. a) Write the molecular, ionic and...
How can you tell Cerebrospinal fluid from epidural fluid
How can you tell Cerebrospinal fluid from epidural fluid
Name: _____________________________          Professor: ____________________________ 30 mL = 1 fluid ounce                 &n
Name: _____________________________          Professor: ____________________________ 30 mL = 1 fluid ounce                                   1 kg = 2.2 lb 1 cc = 1 mL                                                    2.54 cm = 1 inch 60 (65) mg = 1 gr Lab Activities: Your patient is on I & O. He drank an 8 oz. glass of water with his meds. How would you chart his intake in ml’s? You checked your patient’s breakfast tray and your patient consumed the following: ½ of a 4oz container of orange juice,...
What is the concentration in % (v/v) of a methanol solution prepared by mixing 35.0 mL...
What is the concentration in % (v/v) of a methanol solution prepared by mixing 35.0 mL of methanol with 700 mL of distilled water?
30.0 mL solution of 0.010 M piperidine (the active ingredient in hot pepper, the protonated form...
30.0 mL solution of 0.010 M piperidine (the active ingredient in hot pepper, the protonated form is a monoprotic weak acid with pKa= 11.123) was titrated with 0.050 M HCl.   a) Find Ve (the volume of HCl at equivalent point); b) Calculate the pH at Va (the volume of HCl added) =0, ¼ Ve, Ve, and 1.1 Ve; c) Using the information from (b), sketch the titration curve for this titration. Please mark the “landmark” points on this curve.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT