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Pre-Lab Questions (answer on a separate piece of paper) 1. Write reactions for each part in...
plz help 2. Determine the number of moles of Cu atoms in 0.72 g of copper...
plz help
2. Determine the number of moles of Cu atoms in 0.72 g of copper metal. 3. Determine the number of moles of HNO, present in 10 mL of dilute (8M) nitric acid. 4. How many moles of NaOH are present in 8.46 g of NaOH?
wote TITRATION OF AN ACID WITH A BASE 2020 Pre-lab assignment ame In part A of...
wote TITRATION OF AN ACID WITH A BASE 2020 Pre-lab assignment ame In part A of the procedure, you will make a 0.2 M NaOH solution by diluting 6 M NaOH. How many milliliters of 6 M NaOH are required to make 500.0 mL of 0.2 M NaOH? Even though it will be breaking significant figure rules, give the answer to the nearest tenth. In part B of the procedure you will be dissolving oxalic acid dihydrate in water to...
just making sure did I do right in number 10. and im confused at number 11...
just making sure did I do right in number 10. and im confused at
number 11 and 12 13. becausse we didnt learn in class. please help.
thanks for your patient
PROCEDURE 1. This experiment is to be conducted individually. on the side shelf: small squares of copper, NaOH, HSO in the hood: conc. HNOs, conc. HC 2. The following items will be found 4 Use your brush and some soap solution to wash your casserole dish as well as...
Copper start to finish lab questions 7a.) and 7b.) hopefully the last 2 images of information...
Copper start to finish lab questions 7a.) and 7b.)
hopefully the last 2 images of information help make the
problem clearer
7. a) For each mole of Cu dissolved in the nitric acid solution (HNO3), how many moles of [Cu(H2O)612+ are formed? col were formed in your reaction? b) Given your data above, how many moles of [Cu(H2O)6]2+ Reaction I:Cu (s)+ 4 H3O (aq) +2 NO3 (aq) --> [Cu(H2O)]** (aq) +2 NO2 (g) The first reaction in the series is...
CHML 201 Post lab 20 Answer the Q.'s on a separate sheet of paper and attach to your lab report. Write your name on...
CHML 201 Post lab 20 Answer the Q.'s on a separate sheet of paper and attach to your lab report. Write your name on the sheet. 1. A 0.2736 g sample of sulfamic acid (H2NSO3H) required 15.55 mL of a NaOH solution for titration to the phenolphthalein end point. What is the molarity of the NaOH solution? H2NSO3H(aq) + NaOH(aq) = H2NSO3Na(aq) + H2O(l) 2. A 0.1136 g sample of sodium carbonate required 10.55 mL of a H2SO4 solution for...
16 Cts with aqueous copper(II) chloride accord- 101. Zinc metal reacts with aqueous copper(1) ing to...
16 Cts with aqueous copper(II) chloride accord- 101. Zinc metal reacts with aqueous copper(1) ing to this equation: Zn (s) + CuCl2 (aq) → ZnCl2 (aq) + Cu (s) In this reaction, what mass of copper metal can be pro- duced from the reaction of 500 mL of 1.20-M aq. cu 2 with excess zinc? 10 103. The concentration of bromide ion may be determined by gravimetric analysis, using this reaction: Ag+ (aq) + Br (aq) → AgBr (s) A...
Pre-Lab Questions 1. Write the formula and determine the molar mass for the metal carbonate of...
Pre-Lab Questions 1. Write the formula and determine the molar mass for the metal carbonate of each of the first three elements in Group 1. 2. If 2.175 g of each metal carbonate were weighted out, how many moles of each substance would you have Calculate the number of moles of CaCl2 in 125 mL of 0.2 M CaCl solution.
I need help answering the following chemistry lab questions Pre-Lab Questions 1. Define the following terms:...
I need help answering the following chemistry lab
questions
Pre-Lab Questions 1. Define the following terms: a) Acid b) Analyte c) Base d) End Point e) Neutralization reactiorn f) Standard solution 8) Titrant h) Titration A 25.00 ml. sample of NaOH was titrated with a 0.743 M HSO, Solution. The endpoint of the titration was observed after the addition of 5.00 ml. of HSO. Calculate the concentration of the NaOH 2. solution. Post-Lab Questions Calculate the volume of a 0.0321...
HOME WORK 3 Answer the questions on a separate sheet of paper. You must write your...
HOME WORK 3 Answer the questions on a separate sheet of paper. You must write your name on the paper and date it. 1. A 50.0 mL sample of a gas was found to have a pressure of 1.0 atm at 25 °C. What will be the new volume if the pressure is changed to 0.50 atm at constant temperature? 2. The temperature of 20. 0 mL of certain gas was changed from 25.0 °C to 50 °C at constant...
CHM 1045 Reactions and Stoichiometry In Class Questions 2. How many sodium atoms are in 0.120...
CHM 1045 Reactions and Stoichiometry In Class Questions 2. How many sodium atoms are in 0.120 moi Na? 0.10 moi va y...olx.2-12 ima 2. Calculate the number of atoms in 2.95 mol Of copper. 2.45 voleux 3. A Sliver ring contains 1.1 X 10 silver atoms. How many moles of silver are in the ring? Itxite Imol- * 6.024x15 - 4. Zinc (Zn) is a siivery metal that is used in making brass (with copper) and in plating Iron to...
plz help
2. Determine the number of moles of Cu atoms in 0.72 g of copper metal. 3. Determine the number of moles of HNO, present in 10 mL of dilute (8M) nitric acid. 4. How many moles of NaOH are present in 8.46 g of NaOH?
wote TITRATION OF AN ACID WITH A BASE 2020 Pre-lab assignment ame In part A of the procedure, you will make a 0.2 M NaOH solution by diluting 6 M NaOH. How many milliliters of 6 M NaOH are required to make 500.0 mL of 0.2 M NaOH? Even though it will be breaking significant figure rules, give the answer to the nearest tenth. In part B of the procedure you will be dissolving oxalic acid dihydrate in water to...
just making sure did I do right in number 10. and im confused at
number 11 and 12 13. becausse we didnt learn in class. please help.
thanks for your patient
PROCEDURE 1. This experiment is to be conducted individually. on the side shelf: small squares of copper, NaOH, HSO in the hood: conc. HNOs, conc. HC 2. The following items will be found 4 Use your brush and some soap solution to wash your casserole dish as well as...
Copper start to finish lab questions 7a.) and 7b.)
hopefully the last 2 images of information help make the
problem clearer
7. a) For each mole of Cu dissolved in the nitric acid solution (HNO3), how many moles of [Cu(H2O)612+ are formed? col were formed in your reaction? b) Given your data above, how many moles of [Cu(H2O)6]2+ Reaction I:Cu (s)+ 4 H3O (aq) +2 NO3 (aq) --> [Cu(H2O)]** (aq) +2 NO2 (g) The first reaction in the series is...
CHML 201 Post lab 20 Answer the Q.'s on a separate sheet of paper and attach to your lab report. Write your name on the sheet. 1. A 0.2736 g sample of sulfamic acid (H2NSO3H) required 15.55 mL of a NaOH solution for titration to the phenolphthalein end point. What is the molarity of the NaOH solution? H2NSO3H(aq) + NaOH(aq) = H2NSO3Na(aq) + H2O(l) 2. A 0.1136 g sample of sodium carbonate required 10.55 mL of a H2SO4 solution for...
16 Cts with aqueous copper(II) chloride accord- 101. Zinc metal reacts with aqueous copper(1) ing to this equation: Zn (s) + CuCl2 (aq) → ZnCl2 (aq) + Cu (s) In this reaction, what mass of copper metal can be pro- duced from the reaction of 500 mL of 1.20-M aq. cu 2 with excess zinc? 10 103. The concentration of bromide ion may be determined by gravimetric analysis, using this reaction: Ag+ (aq) + Br (aq) → AgBr (s) A...
Pre-Lab Questions 1. Write the formula and determine the molar mass for the metal carbonate of each of the first three elements in Group 1. 2. If 2.175 g of each metal carbonate were weighted out, how many moles of each substance would you have Calculate the number of moles of CaCl2 in 125 mL of 0.2 M CaCl solution.
I need help answering the following chemistry lab
questions
Pre-Lab Questions 1. Define the following terms: a) Acid b) Analyte c) Base d) End Point e) Neutralization reactiorn f) Standard solution 8) Titrant h) Titration A 25.00 ml. sample of NaOH was titrated with a 0.743 M HSO, Solution. The endpoint of the titration was observed after the addition of 5.00 ml. of HSO. Calculate the concentration of the NaOH 2. solution. Post-Lab Questions Calculate the volume of a 0.0321...
HOME WORK 3 Answer the questions on a separate sheet of paper. You must write your name on the paper and date it. 1. A 50.0 mL sample of a gas was found to have a pressure of 1.0 atm at 25 °C. What will be the new volume if the pressure is changed to 0.50 atm at constant temperature? 2. The temperature of 20. 0 mL of certain gas was changed from 25.0 °C to 50 °C at constant...
CHM 1045 Reactions and Stoichiometry In Class Questions 2. How many sodium atoms are in 0.120 moi Na? 0.10 moi va y...olx.2-12 ima 2. Calculate the number of atoms in 2.95 mol Of copper. 2.45 voleux 3. A Sliver ring contains 1.1 X 10 silver atoms. How many moles of silver are in the ring? Itxite Imol- * 6.024x15 - 4. Zinc (Zn) is a siivery metal that is used in making brass (with copper) and in plating Iron to...
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