Do you need to know the exact mass of solid borax you measure? a) Yes, because...
Do you need to know the exact mass of solid borax you measure?
a) Yes, because the concentration of borax is part of your ICE table.
b) No, because a supersaturated solution will need excess borax.
c) Yes, because you must calculate the concentration of the solution using the moles of borax and volume of solution.
d) No, because all borax solutions are saturated solutions.
Homework Answers
c) Yes, because you must calculate the concentration of the solution using the moles of borax and volume of the solution.
This is beecause molaerity is an important measurementy in all reactions involving the solution state of salts. This makes option c the right answer
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Do you need to know the exact mass of solid borax you
measure?
a) Yes, because...
Report Sheet mass of bocx - 0 Part A: Titration of Room Temperature Borax: K Molarity...
Report Sheet mass of bocx - 0 Part A: Titration of Room Temperature Borax: K Molarity of Standard HCl solution: 0.2 M 3.005g Temperature of room temperature borate mixture (T.): T, ind0 °C T, in 293 K Trial 3 (if done) Trial Trial 2 Final buret reading HCl, mL 18.05 my 32.70ml Initial buret reading HCl, mL 5.40ml 18.05mL Volume of HCl used in Titration, ml1265my 14.65ml Moles HCI .00233 .00 293 00293 Moles Borate ? Molarity of Borate Molarity...
Could you please help me with the questions I got wrong? If you dont know the...
Could you please help me with the questions I got wrong? If you
dont know the answer please do not comment, leave it for another
expert to answer because I really need to get this done , Thank you
so much ^^ There's also a guide to the calculations but i dont get
it
Table view List view Sample 2 Sample 3 Table 5. Calculations for concentration of acid solution Sample 1 [1] Volume of acid (mL) 25.0 25.0 25.0...
Chemists often use molarity M, in moles/liter, to measure the concentration of solutions. Molarity is a...
Chemists often use molarity M, in moles/liter, to measure the concentration of solutions. Molarity is a common unit of concentration because the volume of a liquid is very easy to measure. However, the drawback of using molarity is that volume is a temperature-dependent quantity. As temperature changes, density changes, which affects volume. Volume markings for most laboratory glassware are calibrated for room temperature, about 20∘C. A 2.500×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by...
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1. The solubility of a gaseous solute in water is by an increase in pressure. Increased decreased not affected 2. A supersaturated solution may be prepared by slowly cooling down a solution saturated at an elevated temperature. TRUE FALSE 3. A dilution is a solution made by adding a solvent to a supersaturated solution. TRUE FALSE 4. When sugar & water are mixed, a clear liquid results. In this scenario, the sugar is considered a Solute Solution Solvent All of...
I need help answering the rest of these. Experiment TA Lab Team Members Finding Equilibrium Constants:...
I need help answering the rest of these.
Experiment TA Lab Team Members Finding Equilibrium Constants: The Solubility of Borax Report Sheet Part A: Titration of Room Temperature Borax: Kg Molarity of Standard HCl solution: 004 u Temperature of room temperature borate mixture (T); T. in 20.00 Tin 293.15 K Trial 1 LLLLLL Final buret reading HCl, mL Initial buret reading HCI, ml 135.26 12.40 110.48 11.052 Trial 3 Trial 2 (if done) 138.53 39.00 18.83 18.76 110.66 110. 36...
Chemistry 202 College of the Canyons Data Sheet Equilibrium of Co** Complexes exact mass of cool...
Chemistry 202 College of the Canyons Data Sheet Equilibrium of Co** Complexes exact mass of cool 2.6H2O- 0.1803 g mol = 7.57 color-Red 237, 896 x104 Part 1: Determining Absorbance vs Concentration of Tetrahedrally-Coordinated Co** Data Table 1. Absorbance and Color of Com Solutions Mass of CoCl2-6H,0 in 50.00 mL of 2-propanol, 0.1803 g moles Concentration of Cow stock, M Beaker Volume of Coret stock, mL Volume of 2- propanol, ml IM-7.57x104 x 100.01514 0.05 Solution Color Absorbance (A) 9.4...
(2pts) Post-lab Questions AH Choose. ΔΗ (1pts) 1. Do you expect the solubility of Borax to...
(2pts) Post-lab Questions AH Choose. ΔΗ (1pts) 1. Do you expect the solubility of Borax to increase or decrease as temperature increases? Select the option that best explains why. A. Solubility will increase, because as Tincreases the term becomes smaller therefore will get larger. B. Solubility will increase, because as Tincreases the IT term becomes smaller therefore K will get smaller. C. Solubility will decrease, because as increases the term becomes smaller therefore Kwill get smaller. D. Solubility will decrease,...
Part I: You are instructed to produce solutions of H2S04 and NaOH for your lab experiment. The concentration you should produce is shown in the table below. Complete the table and copy it into your l...
Part I: You are instructed to produce solutions of H2S04 and NaOH for your lab experiment. The concentration you should produce is shown in the table below. Complete the table and copy it into your lab notebook for use during your lab. You will be provided with a 3.0 M stock solution of H2SO4 and solid NaOH. You will need to make 100 mL of each solution. H2SO4 Compound NaOH 0.9 Solution Concentration (M) 1.12 Moles in 100 mL 112...
Chemists often use molarity M, in moles/liter, to measure the concentration of solutions Molarity is a...
Chemists often use molarity M, in moles/liter, to measure the concentration of solutions Molarity is a common unt of concentration because the volume of a liquid is very easy to measure. However, the drawback of using molarity is that volume is a temperature-dependent quantity. As temperature changes, density changes, which affects volume Volume markings for most laboratory glassware are calibrated for room temperature, about 20°C Fortunately, there are several other ways of expressing concentration that do not involve volume and...
You need to measure out 2.50 grams of ethyl alcohol. Because it is a liquid, you...
You need to measure out 2.50 grams of ethyl alcohol. Because it is a liquid, you decide that it would be easier to get that mass value by measuring the sample by volume. If ethyl alcohol has a density of 0.789 g/mL, what volume of the liquid would you need? Show your calculations. 2. Should density be considered a value that is exact by definition? Explain your answer. 3. You made some preliminary calculations for an object that you want...
Report Sheet mass of bocx - 0 Part A: Titration of Room Temperature Borax: K Molarity of Standard HCl solution: 0.2 M 3.005g Temperature of room temperature borate mixture (T.): T, ind0 °C T, in 293 K Trial 3 (if done) Trial Trial 2 Final buret reading HCl, mL 18.05 my 32.70ml Initial buret reading HCl, mL 5.40ml 18.05mL Volume of HCl used in Titration, ml1265my 14.65ml Moles HCI .00233 .00 293 00293 Moles Borate ? Molarity of Borate Molarity...
Could you please help me with the questions I got wrong? If you
dont know the answer please do not comment, leave it for another
expert to answer because I really need to get this done , Thank you
so much ^^ There's also a guide to the calculations but i dont get
it
Table view List view Sample 2 Sample 3 Table 5. Calculations for concentration of acid solution Sample 1 [1] Volume of acid (mL) 25.0 25.0 25.0...
1. The solubility of a gaseous solute in water is by an increase in pressure. Increased decreased not affected 2. A supersaturated solution may be prepared by slowly cooling down a solution saturated at an elevated temperature. TRUE FALSE 3. A dilution is a solution made by adding a solvent to a supersaturated solution. TRUE FALSE 4. When sugar & water are mixed, a clear liquid results. In this scenario, the sugar is considered a Solute Solution Solvent All of...
I need help answering the rest of these.
Experiment TA Lab Team Members Finding Equilibrium Constants: The Solubility of Borax Report Sheet Part A: Titration of Room Temperature Borax: Kg Molarity of Standard HCl solution: 004 u Temperature of room temperature borate mixture (T); T. in 20.00 Tin 293.15 K Trial 1 LLLLLL Final buret reading HCl, mL Initial buret reading HCI, ml 135.26 12.40 110.48 11.052 Trial 3 Trial 2 (if done) 138.53 39.00 18.83 18.76 110.66 110. 36...
Chemistry 202 College of the Canyons Data Sheet Equilibrium of Co** Complexes exact mass of cool 2.6H2O- 0.1803 g mol = 7.57 color-Red 237, 896 x104 Part 1: Determining Absorbance vs Concentration of Tetrahedrally-Coordinated Co** Data Table 1. Absorbance and Color of Com Solutions Mass of CoCl2-6H,0 in 50.00 mL of 2-propanol, 0.1803 g moles Concentration of Cow stock, M Beaker Volume of Coret stock, mL Volume of 2- propanol, ml IM-7.57x104 x 100.01514 0.05 Solution Color Absorbance (A) 9.4...
(2pts) Post-lab Questions AH Choose. ΔΗ (1pts) 1. Do you expect the solubility of Borax to increase or decrease as temperature increases? Select the option that best explains why. A. Solubility will increase, because as Tincreases the term becomes smaller therefore will get larger. B. Solubility will increase, because as Tincreases the IT term becomes smaller therefore K will get smaller. C. Solubility will decrease, because as increases the term becomes smaller therefore Kwill get smaller. D. Solubility will decrease,...
Part I: You are instructed to produce solutions of H2S04 and NaOH for your lab experiment. The concentration you should produce is shown in the table below. Complete the table and copy it into your lab notebook for use during your lab. You will be provided with a 3.0 M stock solution of H2SO4 and solid NaOH. You will need to make 100 mL of each solution. H2SO4 Compound NaOH 0.9 Solution Concentration (M) 1.12 Moles in 100 mL 112...
Chemists often use molarity M, in moles/liter, to measure the concentration of solutions Molarity is a common unt of concentration because the volume of a liquid is very easy to measure. However, the drawback of using molarity is that volume is a temperature-dependent quantity. As temperature changes, density changes, which affects volume Volume markings for most laboratory glassware are calibrated for room temperature, about 20°C Fortunately, there are several other ways of expressing concentration that do not involve volume and...
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