Homework Answers
the hazard can be minimized by adding acid to water(A) , if we add water to acid it may splash off and cause severe burns so add always acid to water to minimize the risk of splashes or acid burn
Add Answer to:
65 How can you minimize the hazard of diluting concentrated mineral acids, an exothermic process? A)...
4. (two marks) When diluting concentrated acids, always add a. a small acid volume to a...
4. (two marks) When diluting concentrated acids, always add a. a small acid volume to a larger volume of water b. a tiny volume of water to the acid c. a large acid volume to a small amount of water d. a 50-50 mixture of acid and water e. none of the above 5. (four marks) What volume of water should be added to 500 mL of a 1.0 mol/L CuSO4 solution to dilute it to 0.5 mol/L? a. 500...
In the preparation of an NaOH solution, which is an exothermic process, how can the solubility...
In the preparation of an NaOH solution, which is an exothermic process, how can the solubility of NaOH in water be increased? A. cool the reaction container B. add more solute C. add more solvent D. add more heat
How can you visualize anthranilic acid on TLC plates? How can you visualize carboxylic acids on...
How can you visualize anthranilic acid on TLC plates? How can you visualize carboxylic acids on TLC plates? Three different methods or reagents for both.
PROCEDURE CAUTION!!! Nitric acid and sulfuric acid are strong and corrosive acids. For that reason, avoid...
PROCEDURE CAUTION!!! Nitric acid and sulfuric acid are strong and corrosive acids. For that reason, avoid inhaling its vapors or causing any contact with the skin or clothing. Wear your protective glasses at all times. Use the extractors to work with these acids. A. Nitration of methyl benzoate 1. Preparation of the reactants. In the extractor you will find a burette with concentrated sulfuric acid, a second burette with concentrated nitric acid, clearly identified. Familiarize yourself with the scales of...
Can you explain how to find what is the theoretical yield, and the desired percent yield...
Can you explain how to find what is the theoretical yield, and
the desired percent yield of ethyl 4-nitrobenzoate?
1. Synthesis of ethyl 4-nitrobenzoate a) In a 50-ml round-bottom flask, weigh out 4-nitrobenzoic acid (0.85 g, 0.005 mol). Add to this 8 ml of absolute ethanol. Add boiling stones, and then bring this solution to the Lab Technologist. WATER OUT b) The Lab Technologist will deliver 1.2 ml of concentrated sulfuric acid to the mixture from the automatic pipette. [CAUTION,...
Can you please help me to answer this question? Please provide detailed explanation on how you...
Can you please help me to answer this question? Please provide
detailed explanation on how you get to the answer. Please do not
omit any steps and please explain in detail specially part b. Thank
you very much in advance!
Suppose you have a perfectly insulated container holding 2.00 kg of liquid water at a temperature of 20.0 °C. You also have a large supply of ice cubes which are stored at a temperature of -20.0 °C. a. What is...
i did the synthesis of aspirin experiment and got the data below. how do you do...
i did the synthesis of aspirin experiment and got the data
below. how do you do the theoretical yield? percent yield of the
pure aspirin?
DATA: Mass of Salicylic Acid: 2.034g Volume of Acetic Anhydride used in synthesis: 4.00ml Mass of filter paper: 0.196g Mass of filter paper plus Aspirin: 1.868g Mass of Aspirin: 1.672g Percent Yield of Pure Aspirin: I Experimental Procedure HAZARD: Sulfuric acid, acetic anhydride and glacial acetic acid are corrosive to the skin. They are also...
meed help with part c and e [References) How would you prepare 1.10 L of a...
meed help with part c and e
[References) How would you prepare 1.10 L of a 0.50-M solution of each of the following? . a. H2SO4 from "concentrated" (18 M) sulfuric acid Dilute 30.55 mL of concentrated H2SO4 to a total volume of 110 L with wa b. HCl from "concentrated" (12 M) reagent O EO 9 21 Dilute 45.83 mL of concentrated HCl to a total volume c. NiCl, from the salt NiCl2 - 6H2O Dissolve g NiCl, 6H2O...
How much of each of the following substances would you add to water to prepare 1.10...
How much of each of the following substances would you add to water to prepare 1.10 L of a 0.20 M solution? (a) H2SO4 from "concentrated" (18 M) sulfuric acid (b) HCl from "concentrated" (12 M) reagent (c) NiCl2 from the salt NiCl2·6 H2O (d) HNO3 from "concentrated" (16 M) reagent (e) sodium carbonate from the pure solid
I need help finding the Dilute and Dissolve. - (References) How would you prepare 1.10 L...
I need help finding the Dilute and Dissolve.
- (References) How would you prepare 1.10 L of a 0.50-M solution of each of the following? a. H, SO, from "concentrated" (18 M) sulfuric acid Dilute mL of concentrated H2SO4 to a total volume of 1.10 L with water a b. HCl from "concentrated" (12 M) reagent Dilute mL of concentrated HCI to a total volume of 110L with water c. NiCl, from the salt NiCl, 61,0 Dissolve g NiCl ....
4. (two marks) When diluting concentrated acids, always add a. a small acid volume to a larger volume of water b. a tiny volume of water to the acid c. a large acid volume to a small amount of water d. a 50-50 mixture of acid and water e. none of the above 5. (four marks) What volume of water should be added to 500 mL of a 1.0 mol/L CuSO4 solution to dilute it to 0.5 mol/L? a. 500...
PROCEDURE CAUTION!!! Nitric acid and sulfuric acid are strong and corrosive acids. For that reason, avoid inhaling its vapors or causing any contact with the skin or clothing. Wear your protective glasses at all times. Use the extractors to work with these acids. A. Nitration of methyl benzoate 1. Preparation of the reactants. In the extractor you will find a burette with concentrated sulfuric acid, a second burette with concentrated nitric acid, clearly identified. Familiarize yourself with the scales of...
Can you explain how to find what is the theoretical yield, and
the desired percent yield of ethyl 4-nitrobenzoate?
1. Synthesis of ethyl 4-nitrobenzoate a) In a 50-ml round-bottom flask, weigh out 4-nitrobenzoic acid (0.85 g, 0.005 mol). Add to this 8 ml of absolute ethanol. Add boiling stones, and then bring this solution to the Lab Technologist. WATER OUT b) The Lab Technologist will deliver 1.2 ml of concentrated sulfuric acid to the mixture from the automatic pipette. [CAUTION,...
Can you please help me to answer this question? Please provide
detailed explanation on how you get to the answer. Please do not
omit any steps and please explain in detail specially part b. Thank
you very much in advance!
Suppose you have a perfectly insulated container holding 2.00 kg of liquid water at a temperature of 20.0 °C. You also have a large supply of ice cubes which are stored at a temperature of -20.0 °C. a. What is...
i did the synthesis of aspirin experiment and got the data
below. how do you do the theoretical yield? percent yield of the
pure aspirin?
DATA: Mass of Salicylic Acid: 2.034g Volume of Acetic Anhydride used in synthesis: 4.00ml Mass of filter paper: 0.196g Mass of filter paper plus Aspirin: 1.868g Mass of Aspirin: 1.672g Percent Yield of Pure Aspirin: I Experimental Procedure HAZARD: Sulfuric acid, acetic anhydride and glacial acetic acid are corrosive to the skin. They are also...
meed help with part c and e
[References) How would you prepare 1.10 L of a 0.50-M solution of each of the following? . a. H2SO4 from "concentrated" (18 M) sulfuric acid Dilute 30.55 mL of concentrated H2SO4 to a total volume of 110 L with wa b. HCl from "concentrated" (12 M) reagent O EO 9 21 Dilute 45.83 mL of concentrated HCl to a total volume c. NiCl, from the salt NiCl2 - 6H2O Dissolve g NiCl, 6H2O...
I need help finding the Dilute and Dissolve.
- (References) How would you prepare 1.10 L of a 0.50-M solution of each of the following? a. H, SO, from "concentrated" (18 M) sulfuric acid Dilute mL of concentrated H2SO4 to a total volume of 1.10 L with water a b. HCl from "concentrated" (12 M) reagent Dilute mL of concentrated HCI to a total volume of 110L with water c. NiCl, from the salt NiCl, 61,0 Dissolve g NiCl ....
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago