Question

In: Chemistry

Separation of Mixtures Experiment How do I calculate #6 the saturated NaCl solution and #7 the...

Separation of Mixtures Experiment

How do I calculate #6 the saturated NaCl solution and #7 the mass of sodium chloride from the information below?

1. Mass of evaporating dish: 54.3184g

2. Mass of dish and sodium chloride: 61.1048g

3. Mass of dish and sodium chloride (1st heating): 56.0387g

4. Mass of dish and sodium chloride (2nd heating): 56.0293g

5. Mass of dish and sodium chloride (3rd heating if necessary): N/A

6. Mass of saturated sodium chloride solution: ___

7. Mass of sodium chloride: ___

Also, can you please confirm that the following formulas are correct?

Mass % of NaCl in saturated solution: mass% = [(mass of NaCl) / (mass of NaCl + mass of saturated NaCl)]

Percent deviation between your value and an accepted literature value of 26.4%: % deviation = [|26.4 - my value| / 26.4] x 100%

Solutions

Expert Solution

1)Given mass of dish and sodium chloride (mass of saturated NaCl solution +mass of dish): 61.1048g

Mass of evaporating dish: 54.3184g

Threfore the mass of saturated solution of NaCl is: ( 61.1048g-54.3184g) = 6.7868g

2)Mass of dish and sodium chloride is : 56.0293g

Mass of evaporating dish: 54.3184g

mass of sodium chloride = (56.0293g-54.3184g) = 1.7109g

mass% = [(mass of NaCl) / (mass of NaCl + mass of saturated NaCl)]

= 1.7109g/( 1.7109g+6.7868g)

= 0.201

=20.1%

% deviation = [|26.4 - my value| / 26.4] x 100%

= (26.4-20.1)/26.4] x 100%

= 23.86

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

Separation of Mixtures Experiment Given information: 1. Mass of evaporating dish: 54.3184g 2. Mass of dish...

Separation of Mixtures Experiment Given information: 1. Mass of evaporating dish: 54.3184g 2. Mass of dish and sodium chloride: 61.1048g 3. Mass of dish and sodium chloride (1st heating): 56.0387g 4. Mass of dish and sodium chloride (2nd heating): 56.0293g 5. Mass of dish and sodium chloride (3rd heating if necessary): N/A 6. Mass of saturated sodium chloride solution: ___ 7. Mass of sodium chloride: ___ Question 1) How do I calculate the saturated NaCl solution? Question 2) How do...

What are the answers to questions 5, 6, 7, and 8 and how do I do...

What are the answers to questions 5, 6, 7, and 8 and how do I do them? Below is are balance and income numbers for three companies. Answer the questions below. 1 2 3 Year 1 Year 2 Year 1 Year 2 Year 1 Year 2 Revenue 5674 5054 176896 124959 179083 186506 COGS 3442 3066 144924 102374 144249 150228 Gross Profit 2232 1988 31972 22585 34834 36277 EBITDA 1470 658 7962 2712 15990 20527 Taxes 510 218 6522...

Calculate the mass percent of a NaCl solution in which 141 g of NaCl is dissolved...

Calculate the mass percent of a NaCl solution in which 141 g of NaCl is dissolved in 4.00 L of water at 25 ∘C (density = 0.997 g/mL). Express your answer numerically.

(a) How do you prepare a 0.094% NaCl solution? (b) Tell whether the solution in the...

(a) How do you prepare a 0.094% NaCl solution? (b) Tell whether the solution in the medium outside of the cell is hypertonic, isotonic or hypotonic to the cell. # Inside the Cell Outside of the Cell in the Medium 1 0.009% NaCl 0.009% NaCl 2 0.076% NaCl 0.077& NaCl 3 0.02% NaCl 0.002% NaCl 4 0.09% NaCl 0.009% NaCl

How do I calculate the corrected area of an unknown in a gas chromatography experiment when...

How do I calculate the corrected area of an unknown in a gas chromatography experiment when you have a standardized set of knowns? Which Rf do you use?

Using the stock solution provided (7% NaCl) and water, prepare the following solutions: i) 1 mL...

Using the stock solution provided (7% NaCl) and water, prepare the following solutions: i) 1 mL of NaCl solution with an osmolarity of 50 mOsM ii) 1 mL of NaCl solution with an osmolarity of 300 mOsM iii) 1 mL of NaCl solution with an osmolarity of 1200 mOsM

Calculate the molarity of a 1.8 L solution that contains 6.71 moles of NaCl. How many...

Calculate the molarity of a 1.8 L solution that contains 6.71 moles of NaCl. How many moles of NaOH are in a 935 mL solution that has a concentration of 7.3 M? What is the volume (in L) of a solution that contains 3.8 moles of MgCl2 and has a concentration of 2.5 M? When you use 58.9 mL of 4.0 M HCl to produce H2 gas, how many grams of zinc does it react with? 2HCl + Zn →...