A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in...
A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in HCl. After the fillers were filtered out, the HCl was neutralized by adding sodium carbonate. The resulting precipitate was pure calcium carbonate (with the fillers removed). The solid calcium carbonate was collected on a watch glass that had a mass of 46.719 g when empty. After the calcium carbonate had been allowed to dry, the mass of the watch glass plus product was found to be 47.689
- What is the mass of pure calcium carbonate product collected at the end of the experiment?
g
- Calculate the mass % of calcium carbonate in the tablet. Hint: Use the answer to question 1 and mass of the tablet given in the opening paragraph.
%
- Calculate the mass percent of calcium in calcium carbonate. Report your answer to at least 3 significant figures. Hint: This calculation is theoretical, and is independent of the data provided. Another way to phrase the question would be: What percentage of the molar mass of CaCO3CaCO3 is due to the Ca?
%
- Calculate the number of grams of calcium that were in the tablet. Hint: Use the answers to questions 1 and 3.
g
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A tablet containing calcium carbonate and fillers with a mass of
1.631 g was dissolved in...
A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in...
A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in HCl. After the fillers were filtered out, the HCl was neutralized by adding sodium carbonate. The resulting precipitate was pure calcium carbonate (with the fillers removed). The solid calcium carbonate was collected on a watch glass that had a mass of 46.719 g when empty. After the calcium carbonate had been allowed to dry, the mass of the watch glass plus product was found...
A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in...
A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in HCl. After the fillers were filtered out, the HCl was neutralized by adding sodium carbonate. The resulting precipitate was pure calcium carbonate (with the fillers removed). The solid calcium carbonate was collected on a watch glass that had a mass of 46.719 g when empty. After the calcium carbonate had been allowed to dry, the mass of the watch glass plus product was found...
The active component in one type of calcium dietary supplement is calcium carbonate. A 1.2450-g tablet...
The active component in one type of calcium dietary supplement is calcium carbonate. A 1.2450-g tablet of the supplement is added to 50.00 mL of 0.5000 M HCl (aq) and allowed to react. After completion of the reaction, the excess HCl (aq) requires 40.65 mL of 0.2535 M NaOH (aq) for its titration to the equivalence point. What is the calcium content of the tablet, expressed in milligrams of Ca^2+? m_ca^2+ = mg
A 18.5 g sample of a mixture of magnesium carbonate and calcium carbonate is treated with...
A 18.5 g sample of a mixture of magnesium carbonate and calcium carbonate is treated with excess HCl. The resulting reaction produces 5.23 L of carbon dioxide gas at 28 °C and 753 torr. Write a balanced chemical equation for the reaction that takes place between magnesium carbonate and HCl. Include physical states. chemical reaction: Write a balanced chemical equation for the reaction that takes place between calcium carbonate and HCl. Include physical states. chemical reaction: Calculate the total number...
Most importantly, want to find theoretical yield of Ca_3 (PO_4)_2 Both Ca?and Biº form insoluble ionic...
Most importantly, want to find theoretical yield of
Ca_3 (PO_4)_2
Both Ca?and Biº form insoluble ionic compounds with the phosphate ion (PO), Sodium phosphate a convenient source of this anion and we will use it to precipitate both of the cations we are trying to quantify 3Ca2+(aq) + 2Na3PO,(aq) Ca3(PO) (s) + 6Na+ B. Calt in Calcium Carbonate Antacids 1.1999 1. Mass of the Calcium carbonate tablet 2. Mass of Calcium in the antacid 204mg Ca 3. Theoretical Yield of...
Reaction B: Sodium Carbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch...
Reaction B: Sodium Carbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (b) Mass of evaporating dish + watch glass + sodium carbonate (c) Mass of sodium carbonate used (d) Mass of evaporating dish + watch glass + sodium chloride (e) Mass of sodium chloride collected (experimental yield) 125.99 126.3 g 0.499 126. 29 125-8 9 Data Analysis 1) Use your data to determine the experimental mole-to-mole ratio between sodium carbonate and sodium chloride. Show...
PART A: REACTION STOICHIOMETRY Thal 2 Tablet 1 Tablet 2 Average Data 2020 199 g Mass...
PART A: REACTION STOICHIOMETRY Thal 2 Tablet 1 Tablet 2 Average Data 2020 199 g Mass of NaHCO, Mass of Beaker + Acetic Acid + NaHCO3+ Watch Glass before Reaction Mass of Beaker + Reaction Mixture + Watch Glass after Reaction Calculated Results (see below for guidance) III 194.919|187.31 g Mass of CO2 Gas Released 2 3240 mol 0.98 - Moles of CO2 Gas Released .062 Moles of CO2, Corrected for Amount Dissolved* (see below for note) Moles of NaHCO3...
A tablet weighing 2.074 g and containing aluminium salts was dissolved and diluted to 100.0 mL...
A tablet weighing 2.074 g and containing aluminium salts was dissolved and diluted to 100.0 mL in a volumetric flask. A 25.00 mL aliquot was removed and treated with enough ammonia to precipitate the aluminium (Al) present as aluminium hydroxide (Al(OH)3). After ignition at 800 oC, this precipitate was converted to aluminium oxide (Al2O3) weighed 0.1967 g. Calculate the Al% in the tablet.
1. A particular brand of antacid contains 500 mg of CaCO3 per 2.0 g tablet according...
1. A particular brand of antacid contains 500 mg of CaCO3 per 2.0 g tablet according to the label. How many mol of CaCO3 are contained in one tablet? nCaCO3 = ___ mol Ans. 0.005mol 2. The reaction by which the antacid neutralizes HCl is 2 HCl(aq) + CaCO3(s) à CaCl2(aq) + CO2(g) + H2O(l) How many moles of HCl can be neutralized by one tablet? nHCl = 0.010 mol 3. 50.0 mL of 0.300 M HCl are used to...
1a) Balance this equation: CaCO3+HCl—>CaCl2+H2O+CO2 1b) Calculate the mass of pure calcium carbonate needed to produce...
1a) Balance this equation: CaCO3+HCl—>CaCl2+H2O+CO2 1b) Calculate the mass of pure calcium carbonate needed to produce 40 mL of CO2 at 1 atm and 25 degrees Celsius
A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in HCl. After the fillers were filtered out, the HCl was neutralized by adding sodium carbonate. The resulting precipitate was pure calcium carbonate (with the fillers removed). The solid calcium carbonate was collected on a watch glass that had a mass of 46.719 g when empty. After the calcium carbonate had been allowed to dry, the mass of the watch glass plus product was found...
A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in HCl. After the fillers were filtered out, the HCl was neutralized by adding sodium carbonate. The resulting precipitate was pure calcium carbonate (with the fillers removed). The solid calcium carbonate was collected on a watch glass that had a mass of 46.719 g when empty. After the calcium carbonate had been allowed to dry, the mass of the watch glass plus product was found...
The active component in one type of calcium dietary supplement is calcium carbonate. A 1.2450-g tablet of the supplement is added to 50.00 mL of 0.5000 M HCl (aq) and allowed to react. After completion of the reaction, the excess HCl (aq) requires 40.65 mL of 0.2535 M NaOH (aq) for its titration to the equivalence point. What is the calcium content of the tablet, expressed in milligrams of Ca^2+? m_ca^2+ = mg
A 18.5 g sample of a mixture of magnesium carbonate and calcium carbonate is treated with excess HCl. The resulting reaction produces 5.23 L of carbon dioxide gas at 28 °C and 753 torr. Write a balanced chemical equation for the reaction that takes place between magnesium carbonate and HCl. Include physical states. chemical reaction: Write a balanced chemical equation for the reaction that takes place between calcium carbonate and HCl. Include physical states. chemical reaction: Calculate the total number...
Most importantly, want to find theoretical yield of
Ca_3 (PO_4)_2
Both Ca?and Biº form insoluble ionic compounds with the phosphate ion (PO), Sodium phosphate a convenient source of this anion and we will use it to precipitate both of the cations we are trying to quantify 3Ca2+(aq) + 2Na3PO,(aq) Ca3(PO) (s) + 6Na+ B. Calt in Calcium Carbonate Antacids 1.1999 1. Mass of the Calcium carbonate tablet 2. Mass of Calcium in the antacid 204mg Ca 3. Theoretical Yield of...
Reaction B: Sodium Carbonate and Hydrochloric Acid Experimental Data (a) Mass of evaporating dish + watch glass (b) Mass of evaporating dish + watch glass + sodium carbonate (c) Mass of sodium carbonate used (d) Mass of evaporating dish + watch glass + sodium chloride (e) Mass of sodium chloride collected (experimental yield) 125.99 126.3 g 0.499 126. 29 125-8 9 Data Analysis 1) Use your data to determine the experimental mole-to-mole ratio between sodium carbonate and sodium chloride. Show...
PART A: REACTION STOICHIOMETRY Thal 2 Tablet 1 Tablet 2 Average Data 2020 199 g Mass of NaHCO, Mass of Beaker + Acetic Acid + NaHCO3+ Watch Glass before Reaction Mass of Beaker + Reaction Mixture + Watch Glass after Reaction Calculated Results (see below for guidance) III 194.919|187.31 g Mass of CO2 Gas Released 2 3240 mol 0.98 - Moles of CO2 Gas Released .062 Moles of CO2, Corrected for Amount Dissolved* (see below for note) Moles of NaHCO3...
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