Homework Answers
- No of moles can be calculated by dividing the mass used in and the molar mass. The molar mass of sodium carbonate is 105.9888 g/mol and the molar mass of sodium chloride is 58.44 g/mol. Hence the no of moles of sodium carbonate used is = ( 0.49 / 105.9888) = 0.00462312999 . The no of moles of sodium chloride obtained = ( 125.8 / 58.44) = 2.15263518138. After rounding off ,the values are 0.0046 and 2.15
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Reaction B: Sodium Carbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch...
Reaction A: Sodium Bicarbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (...
Reaction A: Sodium Bicarbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (b) Mass of evaporating dish + watch glass + sodium bicarbonate (c) Mass of sodium bicarbonate used (d) Mass of evaporating dish + watch glass + sodium chloride ium chloride collected (experimental yield) 164.79 165.19 10. 49 165.19 164.7 9 Data Analysis 1) Use your data to determine the experimental mole-to-mole ratio between sodium bicarbonate and sodium chloride. Show your work for each...
this is the data I have now Jerome Name: Cathia Lab Partner: Chem 105/110 Section: Experiment...
this is the data I have now
Jerome Name: Cathia Lab Partner: Chem 105/110 Section: Experiment Date: Mole Ratios and Reaction Stoichiometry Reaction A: Sodium Bicarbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (b) Mass of evaporating dish + watch glass + sodium bicarbonate (c) Mass of sodium bicarbonate used (d) Mass of evaporating dish + watch glass + sodium chloride (e) Mass of sodium chloride collected (experimental yield) 73.289 75.799 2249 .63 Data...
can you respond to the 3 questions in the second photo Mole Ratios and Reaction Stoichiometry...
can you respond to the 3 questions in the second photo
Mole Ratios and Reaction Stoichiometry Reaction A: Sodium Bicarbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (6) Mass of evaporating dish + watch glass + sodium bicarbonate (c) Mass of sodium bicarbonate used (d) Mass of evaporating dish + watch glass + sodium chloride (e) Mass of sodium chloride collected (experimental yield) 164.79 165.19 10. 49 165.19 164.7 9 Data Analysis 1) Use...
2) Determine your percent yield of sodium chloride in reaction A. Show your work for each...
2) Determine your percent yield of sodium chloride in reaction A. Show your work for each step. Write the balanced equation for reaction A - the reaction between sodium bicarbonate and hydrochloric acid. Using mass-to-mass stoichiometry, calculate the theoretical yield of NaCl for reaction A. Use your initial mass of sodium bicarbonate reactant as a starting point, along with the relevant mole-to-mole ratio from the balanced equation to perform this calculation. . Calculate your percent yield of sodium chloride product....
Data Table: Trial 1 Trial 2 1. Mass of evaporating dish with watch glass 84.06 g...
Data Table: Trial 1 Trial 2 1. Mass of evaporating dish with watch glass 84.06 g 84.06 g 2. Mass of sodium bicarbonate 2.16 g 2.36 g 85.40 g 85.59 g 85.40 g 85.49 g 3. Mass of dish/watch glass and residue after 1" heating 4. Mass of dish/watch glass and residue after 2 heating 5. Mass of dish/watch glass and residue after 3"| heating 6. Mass of residue (NaCl) (This is the experimental yield of NaCl) 85.49 g Calculations:...
calculate the mass of NaCl from the data table (first photo). Then perform 1b and question...
calculate
the mass of NaCl from the data table (first photo). Then perform 1b
and question 2.
Just FYI. This data is lab is two parts with diffrent numbers
but same question. If I can figure out this portion that im asking,
I’ll be able to do the rest.
DATA: Data Table 1: NaHCO, Reaction Data Mass of evaporating dish (g) Mass of evaporating dish + NaHCO, (g) Mass of NaHCO; (g) Mass of evaporating dish + NaCl product after...
Use data to answer calculations. Response Sheet Name Section DATA: 1. Mass of evaporating dish and...
Use
data to answer calculations.
Response Sheet Name Section DATA: 1. Mass of evaporating dish and watch glass 2. Mass of evaporating dish, watch glass and zinc 134.1035, US 20304 10.50 10 _19.81184 3. Mass of excess dry zinc (after rinsing and drying) 4. Mass of evaporating dish, watch glass and zinc chloride CALCULATIONS: You must SHOW ALL WORK 1. Mass of the zinc that reacted 2. Mass of the zinc chloride product 3. Mass of chlorine in the zinc...
Paragraph Styles CARBONATE Data Sheet Table 5. Mass Data Item Mass (g) Calcium Chloride (CaCl)
1. Using the mass and molar mass of \(\mathrm{CaCl}_{2}\) determine the number of moles of \(\mathrm{CaCl}_{2}\).2. Convert the moles of \(\mathrm{CaCl}_{2}\) to moles of \(\mathrm{CaCO}_{3}\) using a mole ratio.3. Convert the moles of \(\mathrm{CaCO}_{3}\) to grams of \(\mathrm{CaCO}_{3}\) using the molar mass.4. Using the mass of \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) determine the number of moles of \(\mathrm{Na}_{2} \mathrm{CO}_{3}\).5. Convert the moles of \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) to moles of \(\mathrm{CaCO}_{3}\) using a mole ratio.6. Convert the moles of \(\mathrm{CaCO}_{3}\) to grams of \(\mathrm{CaCO}_{3}\) using...
Thank you. side up on top of the disn, but ipped sngitlyc Tm prop back into...
Thank you.
side up on top of the disn, but ipped sngitlyc Tm prop back into the evaporating dish. up will allow condensation to drain Gently heat the evaporating dish with a small flame until only a dry solid rema 5. Make sure no water droplets remain on the underside of the watch glass. 6. Turn off the gas burner. Allow the apparatus to cool for at least 15 minutes. Determine the mass of the cooled assembly. Record the mass...
im doing a dry lab, can anyone check over problems:1-4 see if i did it correct...
im doing a dry lab, can anyone check over problems:1-4 see if
i did it correct ? thank you
Name Part A Data Table Mass (9) 46.0076a 45.68259 0.3251 45.8370g 45.68759 0.1551 1. Mass of dean, dry evaporating dish and watch 45.6825. glass 2. Mass of evaporating dish, watch glass, and 910 00 Na.Co 3. Mass of Na2CO 10.3251 4. Mass of evaporating dish, watch glass, and Nadi4545210 residue after drying 5 .Experimental mass of NaCl(sodium chloride) 10.1551 6. Theoretical...
Reaction A: Sodium Bicarbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (b) Mass of evaporating dish + watch glass + sodium bicarbonate (c) Mass of sodium bicarbonate used (d) Mass of evaporating dish + watch glass + sodium chloride ium chloride collected (experimental yield) 164.79 165.19 10. 49 165.19 164.7 9 Data Analysis 1) Use your data to determine the experimental mole-to-mole ratio between sodium bicarbonate and sodium chloride. Show your work for each...
this is the data I have now
Jerome Name: Cathia Lab Partner: Chem 105/110 Section: Experiment Date: Mole Ratios and Reaction Stoichiometry Reaction A: Sodium Bicarbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (b) Mass of evaporating dish + watch glass + sodium bicarbonate (c) Mass of sodium bicarbonate used (d) Mass of evaporating dish + watch glass + sodium chloride (e) Mass of sodium chloride collected (experimental yield) 73.289 75.799 2249 .63 Data...
can you respond to the 3 questions in the second photo
Mole Ratios and Reaction Stoichiometry Reaction A: Sodium Bicarbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (6) Mass of evaporating dish + watch glass + sodium bicarbonate (c) Mass of sodium bicarbonate used (d) Mass of evaporating dish + watch glass + sodium chloride (e) Mass of sodium chloride collected (experimental yield) 164.79 165.19 10. 49 165.19 164.7 9 Data Analysis 1) Use...
2) Determine your percent yield of sodium chloride in reaction A. Show your work for each step. Write the balanced equation for reaction A - the reaction between sodium bicarbonate and hydrochloric acid. Using mass-to-mass stoichiometry, calculate the theoretical yield of NaCl for reaction A. Use your initial mass of sodium bicarbonate reactant as a starting point, along with the relevant mole-to-mole ratio from the balanced equation to perform this calculation. . Calculate your percent yield of sodium chloride product....
Data Table: Trial 1 Trial 2 1. Mass of evaporating dish with watch glass 84.06 g 84.06 g 2. Mass of sodium bicarbonate 2.16 g 2.36 g 85.40 g 85.59 g 85.40 g 85.49 g 3. Mass of dish/watch glass and residue after 1" heating 4. Mass of dish/watch glass and residue after 2 heating 5. Mass of dish/watch glass and residue after 3"| heating 6. Mass of residue (NaCl) (This is the experimental yield of NaCl) 85.49 g Calculations:...
calculate
the mass of NaCl from the data table (first photo). Then perform 1b
and question 2.
Just FYI. This data is lab is two parts with diffrent numbers
but same question. If I can figure out this portion that im asking,
I’ll be able to do the rest.
DATA: Data Table 1: NaHCO, Reaction Data Mass of evaporating dish (g) Mass of evaporating dish + NaHCO, (g) Mass of NaHCO; (g) Mass of evaporating dish + NaCl product after...
Use
data to answer calculations.
Response Sheet Name Section DATA: 1. Mass of evaporating dish and watch glass 2. Mass of evaporating dish, watch glass and zinc 134.1035, US 20304 10.50 10 _19.81184 3. Mass of excess dry zinc (after rinsing and drying) 4. Mass of evaporating dish, watch glass and zinc chloride CALCULATIONS: You must SHOW ALL WORK 1. Mass of the zinc that reacted 2. Mass of the zinc chloride product 3. Mass of chlorine in the zinc...
1. Using the mass and molar mass of \(\mathrm{CaCl}_{2}\) determine the number of moles of \(\mathrm{CaCl}_{2}\).2. Convert the moles of \(\mathrm{CaCl}_{2}\) to moles of \(\mathrm{CaCO}_{3}\) using a mole ratio.3. Convert the moles of \(\mathrm{CaCO}_{3}\) to grams of \(\mathrm{CaCO}_{3}\) using the molar mass.4. Using the mass of \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) determine the number of moles of \(\mathrm{Na}_{2} \mathrm{CO}_{3}\).5. Convert the moles of \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) to moles of \(\mathrm{CaCO}_{3}\) using a mole ratio.6. Convert the moles of \(\mathrm{CaCO}_{3}\) to grams of \(\mathrm{CaCO}_{3}\) using...
Thank you.
side up on top of the disn, but ipped sngitlyc Tm prop back into the evaporating dish. up will allow condensation to drain Gently heat the evaporating dish with a small flame until only a dry solid rema 5. Make sure no water droplets remain on the underside of the watch glass. 6. Turn off the gas burner. Allow the apparatus to cool for at least 15 minutes. Determine the mass of the cooled assembly. Record the mass...
im doing a dry lab, can anyone check over problems:1-4 see if
i did it correct ? thank you
Name Part A Data Table Mass (9) 46.0076a 45.68259 0.3251 45.8370g 45.68759 0.1551 1. Mass of dean, dry evaporating dish and watch 45.6825. glass 2. Mass of evaporating dish, watch glass, and 910 00 Na.Co 3. Mass of Na2CO 10.3251 4. Mass of evaporating dish, watch glass, and Nadi4545210 residue after drying 5 .Experimental mass of NaCl(sodium chloride) 10.1551 6. Theoretical...
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