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please help me with 5 and 6 6. Limestone can be considered to be essentially pure...
please i need help with queation 4,5a,5b, and 6 4. Consider the reaction of aluminum and...
please i need help with queation 4,5a,5b, and 6
4. Consider the reaction of aluminum and oxygen: Al(s) + O,(g)>Al,0,(s) (i). Which is the limiting reactant if we start with 30.0 g Al and 30.0 g O,? (ii). What is the Theoretical Yield for the reaction? (iii). If 25.85 g of Al,O, was collected at the completion of the reaction (actual yield), what is the % yield for the reaction? 5. (a). A 1.506-g sample of limestone-containing material gave 0.558...
Can someone please help? Thank you. ATOM ECONOMY: The traditional way of evaluating the efficiency of...
Can someone please help? Thank you.
ATOM ECONOMY: The traditional way of evaluating the efficiency of an organic reaction is to determine the percent yield of the reaction. Most organic chemists would be quite pleased with a reaction with >90% isolated yield of the target molecule. On the other hand, a yield of 30% is typically considered to be a disappointment. As a review of the concept of theoretical yield and percent yield, let's consider the following Sy2 reaction CH3CH2CH2CH2OH...
Can you help me fill the empty spots in this table? Please show me how to...
Can you help me fill the empty spots in this table? Please show
me how to do it. Remember that concentrate hydrochloric acid is a
12.1 M solution of HCl in water
Compound Structure MW (g/mol) Mass (g) mols Density g/mL 1.000 @ 3.9 deg Volume (mL) .3 mL 18.02 H2O Not required Water CAS # 7732-18.5 Maleic acid CAS # 110-16-7 116.08 200 mg Not required Ho— -OH 116.08 Not Fumaric acid CAS# 110-17-8 Not required Not required Not...
Can someone please help me solve this? I've been stuck on this question for a long...
Can someone please help me solve this? I've been stuck on this question for a long time and I'm still having trouble. Could you please also include the steps on how you would solve this, I have an exam coming up and somehow I still can't figure this out! Question: In a coffee-cup calorimeter, 1.74 g KOH is added to 125 ml of 0.80 M HCl. The following reaction occurs: KOH(s) + HCl(aq) → H2O(l) + KCl(aq) Due to the...
can someone please help me out with questions 1-5, please To add more information this was...
can someone please help me out with questions 1-5, please
To add more information this was given to me for a lab that used
a weak acid and we added a strong base through titration. We just
observed how the ph changes. Later we then used a buffer with a
weak acid to see how buffers affect ph change. These questions are
basically surrounded around those topics to help us prepare.
However, I'm kinda confused about answering them because weak...
Please help! Thank you so much 6. An object can be electroplated with a layer of...
Please help! Thank you so much
6. An object can be electroplated with a layer of solid chromium by submerging it in an aqueous mixture of Croz and H2SO4 and applying a current. a. Write the net ionic equation for the electroplating half-reaction. (5 pts) b. Calculate the time required to electroplate 27.5 g of chromium at a current of 25 A. Express the final answer in hours. (5 Answer: 7. Sulfuric acid is produced through the reaction of sulfur...
Can someone please help me with this questions? EXPERIMENT 6 DATA CALCULATIONS Determine the molar mass...
Can someone please help me with this questions? EXPERIMENT 6 DATA CALCULATIONS Determine the molar mass of Monoprotic Acid used in this experiment from the following data obtained during the course of this experiment: a) 40 ml of pre-prepared 3.0 g/L of an unknown monoprotic acid in a 100 mL beaker for titration with sodium hydroxide using Ph meter. b)Molarity of sodium hydroxide Mb=0.0768 moles/L determined by titration with known strength of khp. c)Volume of sodium hydroxide to equivalence point=23.5mL...
can someone help with these practice problems? thank you! (5 pts.) 4. What is the density...
can someone help with these practice problems? thank
you!
(5 pts.) 4. What is the density of carbon dioxide gas at -25.2°C and 735 mmHg? (4 pts.) 5. What is the pressure, in atm, in a 7.50-L flask if 0.15 mol of carbon dioxide is added to 0.33 mol of oxygen? The temperature of the mixture is 48.0°C. (6 pts.) 6. A gas mixture consists of equal masses of methane (molecular weight 16.0) and argon (atomic weight 40.0). If the...
I am having trouble determining the calculations for table 3. Can you please show me how to do th...
i am having trouble determining the calculations for table 3.
Can you please show me how to do the calculations? thank you!
Mass Formula Weight Amount Needed Amount NeededWeighed Chemical Ingredient Formula(g/mol) CO3 03 349 13.2 4 oz. Baking Soda Epsom Salt 2 oz. blo Corn Starch 2 oz. slo v Citric Acid 2 oz. Dried Flower Petals Least amount possible Witch Hazel Soap Colorant 4-6 drops 4-6 drops Essential Oil 119 Coconut Oill 17 g Solution pH Bath Bomb...
can someone help me answer these 5 questions and figire this graph out please? Acid-Base Titration...
can
someone help me answer these 5 questions and figire this graph out
please?
Acid-Base Titration of a Weak Acid with a Strong Base: Determination of K. Introduction: You will be titrating a solution of a weak acid with 0.100 M NaOH, while monitoring the reaction using a pH meter. Weak acids have characteristic acid-ionization constants, K. The purpose of this lab is to use the titration to determine the value of this constant for the weak acid called “benzoic...
please i need help with queation 4,5a,5b, and 6
4. Consider the reaction of aluminum and oxygen: Al(s) + O,(g)>Al,0,(s) (i). Which is the limiting reactant if we start with 30.0 g Al and 30.0 g O,? (ii). What is the Theoretical Yield for the reaction? (iii). If 25.85 g of Al,O, was collected at the completion of the reaction (actual yield), what is the % yield for the reaction? 5. (a). A 1.506-g sample of limestone-containing material gave 0.558...
Can someone please help? Thank you.
ATOM ECONOMY: The traditional way of evaluating the efficiency of an organic reaction is to determine the percent yield of the reaction. Most organic chemists would be quite pleased with a reaction with >90% isolated yield of the target molecule. On the other hand, a yield of 30% is typically considered to be a disappointment. As a review of the concept of theoretical yield and percent yield, let's consider the following Sy2 reaction CH3CH2CH2CH2OH...
Can you help me fill the empty spots in this table? Please show
me how to do it. Remember that concentrate hydrochloric acid is a
12.1 M solution of HCl in water
Compound Structure MW (g/mol) Mass (g) mols Density g/mL 1.000 @ 3.9 deg Volume (mL) .3 mL 18.02 H2O Not required Water CAS # 7732-18.5 Maleic acid CAS # 110-16-7 116.08 200 mg Not required Ho— -OH 116.08 Not Fumaric acid CAS# 110-17-8 Not required Not required Not...
can someone please help me out with questions 1-5, please
To add more information this was given to me for a lab that used
a weak acid and we added a strong base through titration. We just
observed how the ph changes. Later we then used a buffer with a
weak acid to see how buffers affect ph change. These questions are
basically surrounded around those topics to help us prepare.
However, I'm kinda confused about answering them because weak...
Please help! Thank you so much
6. An object can be electroplated with a layer of solid chromium by submerging it in an aqueous mixture of Croz and H2SO4 and applying a current. a. Write the net ionic equation for the electroplating half-reaction. (5 pts) b. Calculate the time required to electroplate 27.5 g of chromium at a current of 25 A. Express the final answer in hours. (5 Answer: 7. Sulfuric acid is produced through the reaction of sulfur...
can someone help with these practice problems? thank
you!
(5 pts.) 4. What is the density of carbon dioxide gas at -25.2°C and 735 mmHg? (4 pts.) 5. What is the pressure, in atm, in a 7.50-L flask if 0.15 mol of carbon dioxide is added to 0.33 mol of oxygen? The temperature of the mixture is 48.0°C. (6 pts.) 6. A gas mixture consists of equal masses of methane (molecular weight 16.0) and argon (atomic weight 40.0). If the...
i am having trouble determining the calculations for table 3.
Can you please show me how to do the calculations? thank you!
Mass Formula Weight Amount Needed Amount NeededWeighed Chemical Ingredient Formula(g/mol) CO3 03 349 13.2 4 oz. Baking Soda Epsom Salt 2 oz. blo Corn Starch 2 oz. slo v Citric Acid 2 oz. Dried Flower Petals Least amount possible Witch Hazel Soap Colorant 4-6 drops 4-6 drops Essential Oil 119 Coconut Oill 17 g Solution pH Bath Bomb...
can
someone help me answer these 5 questions and figire this graph out
please?
Acid-Base Titration of a Weak Acid with a Strong Base: Determination of K. Introduction: You will be titrating a solution of a weak acid with 0.100 M NaOH, while monitoring the reaction using a pH meter. Weak acids have characteristic acid-ionization constants, K. The purpose of this lab is to use the titration to determine the value of this constant for the weak acid called “benzoic...
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