Show ALL your work to receive full credit. You must turn in your work on this worksheet. 1. (1 pt) What is the goal (s) of this experiment? To determine the auont of the (racted sodiunn bicerbona te CNa H Co) in Alka SCl2er tayies b usias 4ue male- mass eician ship. (9 pts) A student is trying to determine the mass percentage of sodium bicarbonate in certain antacid tablet. The student performed an experiment by adding each tablet to a solution containing different amounts of hydrochloric acid and water as shown below: 2. 2 2 10 3 4 8 4 6 6 Beaker # 0.50 M Hydrochloric acid (mL) Water (mL) Mass of beaker and liquid (g) Mass of one tablet (g) Mass of beaker with all substanees after the reaction was completed (g) 0 12 125.52 125.52 25.10 25.12 24.97 25.01 152.14 152.29 152.48 152.62 Mass of the gas produced (B) S Check pic a, Write a balanced chemical equation for this reaction.

Q: copper sulphate (CuSo4) with a concentration of 0.00095 mol l-1. If they wanted to prepare one litre…

A: Here, Molecular weight of CuSO4= RAM(Cu)+ RAM(S)+ 4×RAM(O).…

Q: How many moles of H2(g) are generated by the complete reaction of 0.145g of Mg(s) with excess…

A: The balanced reaction is ., Mg (s) + 2HCl (aq) ----> MgCl2 (s) + H2 (g)

Q: How many molecules (not moles) of NH3NH3 are produced from 7.93×10−4 gg of H2H2?

A:

Q: Suppose a 17.8640 g sample of a NaCl and KCl mixture contains 3.5286 g of NaCl. What is the percent…

A: The mass percent of the component in the mixture can be calculated by using the below formula- Mass…

Q: How many grams of magnesium oxide can be produced by reacting 0.248 g magnesium that is 97.5% pure…

A: Given mass of Magnesium = 0.248g% purity of Magnesium = 97.5%No.of molecules of oxygen = 5.36 x…

Q: Determine the molar mass of the hydrate CaCl2⋅2H2O.CaCl2⋅2H2O. molar mass:   g/mol

A:

Q: 1-Calculate the mass of compound required to prepare 100.00 mL of a 1.40x102 M CuCl2 ?.

A: Molarity is number of moles of solute present per liter of solution, notated as M and the unit is…

Q: How can you measure the efficacy of a reaction carried out in the laboratory? Calculate the percent…

A: we can know the efficacy of a reaction by calculating the percentage yield of the product. because…

Q: A water solution of sulfuric acid (H2SO4) has a density of 1.864 g/mL and is 73.0% H2SO4 by mass.…

A:

Q: Aqueous sulfuric acid (H₂SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: First calculate the number of moles for H2SO4 and NaOH. Use that moles to calculate the mass of…

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: The following equation is not balanced: CaSO4+AlCl3→CaCl2+Al2(SO4) Notice that "SO4" appears in…

A: A balanced equation is one where the number of atoms of each element on either side are same If the…

Q: When chemists work with solid materials, we simply weigh out amounts of solid reagents and calculate…

A: 1) Since moles  = mass / molar mass  Hence moles of  NH4Cl  = mass of  NH4Cl / molar mass of  NH4Cl…

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

A:

Q: 8.15g of phosphorus reacts with bromine to form 71.22g of phosphorus tribromide. Calculate the…

A:

Q: The percent yield for the reaction PCl3 + Cl2 → PCl5 is 67.7 percent. What mass of PCl5 would be…

A:

Q: What mass of phosphorus pentachloride would be produced by the complete reaction of 15.2 g of P4?

A: The balanced chemical equation from the above question is  P4 + 10 Cl2 → 4 PCl5 Molar mass of P4  =…

Q: A compound was found by elemental analysis to contain 39.96 % carbon, 13.42 % hydrogen, and 46.62 %…

A: Molecular formula is the formula of the molecule in which all the atoms are represented with number…

Q: Determine the mass of calcium nitrate required to prepare 3500 mL of a 0.800

A:

Q: Suppose a student starts with 2.3865 g of a sand mixture and separates the components into 1.3012 g…

A: The objective of this question is to calculate the percentage of SiO2 in the starting mixture of…

Q: How many molecules (not moles) of NH3 are produced from 7.42×10−4 g of H2?

A: To obtain the number of molecules, first of all the reaction for the production of NH3 should be…

Q: Precipitating gravimetry is a technique to determine the amount of an analyte based on mass of the…

A: Precipitating gravimetry is a technique to determine the amount of an analyte based on mass of the…

Q: Molarity is used to measure concentration in chemistry. What are the two units used that make up…

A: -> Molarity is number of moles present in one Litere of solution.                          (or)…

Q: Write and balance the chemical equation and then determine which reactant is the limiting reagent…

A: The balanced chemical reaction is as follows,

Q: Determine the mass of a solution of a 7.897 wt % LiI if you needed to provide 0.3894 moles of LiI…

A: wt% = 100 x Mass of solute/Mass of solution Mass = Number of moles x molar mass

Q: 5 g of hydrated barium chloride is heated in a crucible until the mass of the sample no longer…

A: Given: Mass of hydrated barium chloride = 5 g Mass of sample after heating = 4.26 g The loss of mass…

Q: 1-Calculate the mass of compound required to prepare 100.00 mL of a 1.40x102 M CuCl2 ?.

A: Molecular weight of CuCl2 = 134.45 g mol-1 Formula Used 1. No of moles = volume × concentration 2.…

Q: What mass in grams are in 5.32x10^22 molecules of CO2? For some reason, I'm getting confused on how…

A:

Q: Grease fires can be extinguished by applying baking soda (sodium hydrogen carbonate), which…

A: The balanced equation for the decomposition of NaHCO3 (sodium hydrogen carbonate) is given as:…

Q: How many grams of P2O5P2O5 are formed when 9.51 g 9.51 g  of phosphorus reacts with excess oxygen?…

A:

Q: In a lab experiment, 7.97 g of phosphorus reacts with bromine to form 69.65 g of phosphorus…

A: When mole fraction of element is multiply by 100 we obtained percentage by mass .

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".