rules of significant figures; include units with each result. Mixture 1 Mixture 2 Pure Lauric Acid 2.67_g lauric acid ass (g) elting int (°C) rcent earic acid -mass (%) 44 0 2.88 g stearic acid 64 2.76 g lauric acid 2.62 g stearic acid 67 Mixture 3 2.59 _g lauric acid 2.72 _g stearic acid 57 Pure stearic acid 60 100

Q: Molarity of second diluted CuSO4 solution (M) 0.000246 How to Calculate Mass of Solute Needed to…

A: Molarity of CuSO4 solution = 0.000246 M (Given) Since, volume of the solution is not given, for…

Q: What is the volume in L of a .724 M Nal solution contains .405 mol of Nal?

A: We know  Molarity = mole÷volume Volume=.724×.405=0.29L

Q: What will be the effect on the calculated percent water in the unknown (greater or smaller), if the…

A: Given  calculated percent water in the unknown (greater or smaller)

Q: what is the Concentration in WiU PErcent for a Solution haslıe moles of cusSou and the tatal Volume…

A: Given Values Moles of CuSO4 = 1.2 mol Molar mass of CuSO4 = 159.609g/mol Mass of CuSO4 = 1.2…

Q: What is the mole fraction of solute in a 3.26 m aqueous solution?

A: molality of a solution = 3.26 mmole fraction of a solute =?

Q: 3. Calculate the volume of 5.00 grams of 03.

A: Mass of O3 gas = 5.00 grams We need to calculate the volume of O3 gas.

Q: What term is associated with the part of a solution that is present in the greatest amount?

A:

Q: How many milliliters of a 0.22 M sucrose solution contain 0.750 g sucroseZ?

A:

Q: The percentage composition of unknown sample is found to be 32% C, 6.71% H, and 18.66% N. Determine…

A:

Q: How can you prepare 250 mL of 1.0 M NaOH solution containing 2% Na2CO3 (Na: 23.0 g/mol, O: 16.0…

A: Given,Volume of solution = 250 mLMolarity of NaOH = 1.0MMolarity = number of moles / volume of…

Q: In an experiment done, a sample of water was found to contain 400 g of calcium per m³ of sample.…

A: Ppm or ppb are concentration terms Here we are required to express the mass of calcium in (a) Parts…

Q: How much water (in grams) should be added to 5.80 g of KCI to prepare a 0.160 m solution? Answer to…

A: Given  : mass of solute ( KCl ) = 5.80 g        Molality of KCl solution= 0.160 m = 0.160 mol / kg…

Q: What is the molarity of a solution which contains 86.7g of LiBr dissolved in 0.400L of solution?…

A: Molarity or the molar concentration is the measure of the conc. of a chemical species. Given: The…

Q: How can you specify the solution as unsaturated or saturated?

A: Saturated and unsaturated solutions

Q: Calculate the mass percent of a vinegar solution with a total mass of 97.29 g that contains 3.63 g…

A:

Q: How many milliliters of 0.22 M NaCl Contains 0077 0.077 motes 2

A:

Q: Compute: % of S in magnesium sulfite. O a. 23% O b. 31% O c. 27%

A:

Q: Find the % by volume for a solution containing 33mL of hydrogen peroxide in 150mL of water.…

A:

Q: When doing a dilution, the concentration should go (up / down / stay the same). The total number of…

A: Molarity = no.of moles of Solute/volume of solution in L

Q: Does the addition of solvent change the mass of the solute when a solution is diluted? Explain

A: Solution is made by mixing of solute and solvent. Solute is the substance present in less quantity…

Q: 4.How many grams of NaCl would be required to create a 12.1 % of a 495 g solution? Numerical…

A: We know that  1 % Solution is defined as 1gram of solute and make upto total mass of 100 gram of…

Q: Calculate the morality of a 45.8 percent (by mass) aqueous solution of sodium chloride

A: mass % of the Sodium chloride solution = 45.8 %Molality of the solution = ?Note: Molar mass of…

Q: Calculate the molarity of the solution when 0.030 moles of NaOH is contained within 5.9 L of…

A: Molarity = no. Of moles/volume(L)

Q: What percent of water is in the compound magnesium sulfate hydrate

A: The chemical formula of magnesium sulfate hydrate is MgSO4.H2O. Its formula mass is 138.37 g/mol.

Q: Calculate the molarity if 136 grams of NaCl is dissolved in water to make exactly one liter of…

A: Since the molarity is defined as  Molarity = moles of solute / Volume of solution in L Since solute…

Q: )Explain in words with details how you would prepare a dilute solution from a stock solution.

A: A solution is a mixture of solute and solvent present in varied concentrations and these…

Q: What is the percent by mass concentration of NaCl in a solution that is prepared by adding 15.0 g of…

A:

Q: Determine the % by mass of a solution consisting of 360g acetic acid and 600g water.

A: Here we are required to determine the % by mass of a solution consisting of 360g acetic acid and…

Q: Which two statements are correct? a) The normality of the K2Cr2O7 solution is 0.41 N b) The…

A: When dichromate ion in acidic medium, treated with ferrous ion, then Ferric ion and chromium (III)…

Q: A solution is 6.25% by mass Na2SO4. How many moles of Na2SO4 are in 370.0 g of solution? (SHOW…

A: Mass of Na2SO4 present in 370 g of solution = (6.25 / 100) x 370 = 23.125 g

Q: 5. How many mL of 20% KCI stock solution is needed to make 0.50% solution with a final volume of 100…

A: The m/v concentration is defined as the mass of the solute present in the volume of the solution.…

Q: What’s the difference between sour and bitter?

A: A taste is a sensation felt by us when we eat something and it reacts chemically with the taste…

Q: What is the Molarity of of the BaCl2 solution? volume BaCl2=25.0 mL moles BaCl2=0.0024

A: The molarity (M) of the solution that contains the available moles of the solute is determined as…

Q: The chemical structure of lactic acid (C₂H₂O3) is shown below. Highlight each atom that is in a…

A: Given,

Q: How many moles are in a solution with a molarity of 1.2 M and 566 ml

A: Given Molarity-: 1.2 M Volume of solution -: 566 ml we know  Molarity =Number of moles (n)volume of…

Q: How do you find the average percent water in an unknown?

A: Let's say there is any unknown sample given with some mass M.

Q: pject what is the mass / volume percent concentration or voll vol percent concentration of…

A:

Q: VOLUME PERCENTAGE Solve the given problem and provide a solution. 1. What is the volume percent of…

A: Volume of ethanol = 40 ml  Volume of solution = 225 ml

Q: Clearly show a calculation of the molarity of NaOH. Use your data, and include units.

A:

Q: fine moles of hcl in 0.4488g

A: We have to calculate the moles of HCl in 0.4488 g.

Q: 5)Which formula represents a solution? 

A: In this question, we will Identify which species represent a solution. How we can identify, you can…

Q: 2. A 1.235 g sample of unknown strontium chloride hydrate was found to have 0.511 g of water…

A: Given : Mass of hydrate compound = 1.235 g And mass of water present = 0.511 g

Q: 3. One or more components present in the solution other than solvent are called both solvent solutes…

A: A solution is a mixture formed when a solid, liquid or gaseous substance is homogeneously mixed with…

Q: What is the mass of 21% alcohol solution is needed to provide 18g of alcohol?

A: Given :-  %w/w of solution = 21% Mass of alcohol = 18 g  To be calculated :-  Mass of alcohol…

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".