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9 3 2 > - 5 d 3 9 ? ? $ ? 9 3 9 16. With the filter paper still in the funnel spray the filter paper with ethanol. 17. Transfer the ethanol sprayed filter paper to the “C2" watch glass.™., 18. Determine the ?fiass of the ethanol sprayed “C2" filter paper and the “C2" watch glass and record that mass on the pre the mass and record it on the previous pa 20. Collect your erlenmeyer flask and funnel - place your funnel in the opening of the erlenmeyer flask. 21. Place "C3" filter paper in the funnel. 22. Collect ~100mL of deionized water an/q, our it through the "C3" filter paper, ensuring that the filter paper is completely saturated w!'y:f water. o \N*after 30 min {s;ts of watch glass, filter, & water 23. Transfer the filter paper to the “C3" watch glass. 24. Determine the mass of the/'C3” filter paper and the “C3" watch glass andfecord that mass in the space to the right. f 26. Place the damp (\gdfc’;l filter paper + watch glass in a safe space Aear your working area where it will not be disrupted. Part ll: Separating iron from a gquaternary mixture (a mixture with 4 things) 1. Collect a plastic beaker, determine its mass and record it to the right for “beaker #1." 2. Collect approximately 2g of the quaternary mixture, in your plastic beaker and record the precise mass in the space to the right. 3. Collect the other plastic beaker, determine the mass and record it in the Space to the right for “beaker #2." 4. Place your magnet under the base of “beaker #1" and carefully pour the mixture from “beaker #1" to "beaker #2." 5. Determine the mass of “beaker #2" contents transferred from ‘beaker #1." 6. Determine the Mass of iron from the original Mixture, S Li LR and the 211 Mass of watch gfisé aC 2k g Mass of w%lass, filter, & water et e e Ly (e Mass;i@ater égs of watch glass, filter, & water *after 15 min Mass of watch glass, filter, & water *after 45 min g Mass of \7v r still in filter paper after 45min g Quaternary Mixture Data Mass of Beaker #1 We.H2 ¢ Mass of Beaker + mixture ¥ . \>rg Mass of mixture S 00 g Mass of Beaker #2 1663 g Mass of Beaker #2 + mixture 77 %1 g Mass of Iron 0K\ g 1A% GERERAL CRENISTRY Il i
s (W Y Ty L BRI R A e N s Ot oo Tl B e Z A AR g NG RS ) 2 v Y ) AT Wi b ey e N 25 gl Quaternary Mixture Data Mass of Erlenmeyer flask Bslol g Mass of E flask + NaCl e o i I Mass of NaCl @t g Quaternary Mixture Data Mass of Evaporatingdish ~ 2 1:(05 ¢ Mass of E dish + sand Q0L g Mass of sand Jil .. g b A e L - W e @ - ‘-n‘-“\-\‘\- BN Y ; \ » Part lll: Separating NaCl from a quaternary mixture 1. Collect a coffee filter and remove the baffles from the flask. 2. Collect approximately 50mL of deionized water in your graduated cylinder. 3. Transfer approximately 25mL deionized water into "beaker #2." 4, Determine the mass of your dry erlenmeyer flask and record it in the space to the left. i 5. Place the funnel in the erlenemeyer flask and ' ¢ place the filter paper in the funnel. 6. Transfer the contents of “beaker #2" to the funnel - do not overload the filter paper and do not let any solution seep between the filter paper and the funnel. 7. Transfer additional deionized water to “beaker #2" as needed to transfer all of the materials from “beaker #2" to the funnel. 8. Carfully remove the funnel from the erlenmeyer flask and place the erlenmeyer flask on the hot | @ plate and begin heating the contents of the | @ .n,; g Sy SR X1 ) o - \v! \J 8 \ gessons 8/ i LY - W =4 \= \= R erlenemeyer flask on the hot plate until all water & has evaporated. @ 9. After the solution in the evaporating dish has evaporated, turn the hot plate off, allow the erlenmeyer flask to cool - determine the mass of the erlenmeyer flask + NaCl. Part IV: Separating sand from a quaternary mixture 1. Determine the mass of your evaporating dish and record in the space to the left. 2. Carefully transfer the filter paper from your funnel onto your evaporating dish. 3. Add HCI to the filter paper in dish. 4. Add HCI to this mixture un develop. 5. After bubbles sto the filter Paper from t behind the solution filter paper. ssegeeetl . D | i your evaporating til no more bubbles | P forming, carefully remove he €vaporating dish - leaving and any solids - discard the ZU,EEWEML CHERIST R e —— 4 £
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Help I really have no idea if I calculated it right
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Table 8.7 (data)
HCI plug location
10
NH3 plug location
60
Deposit location
32
Table 8.8 (report)
HCI Mol. weight
NH3 Mol. weight
HCI Diff. distance
NH3 Diff. distance
Rate ratio (exp.)
Rate ratio (theor.)
https://youtu.be/23hobwUe7-M
Lab video
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THE QUESTION IS AT THE PICTURE... 2 QUESTIONS ONLY.. AND THE GIVEN PROBLEMS IS THE ONE I TYPED............. PLEASE TYPE YOUR ANSWER PLEASE....A. Concentration1. Place 3 mL each of 6N, 3N, & 1.5N hydrochloric acid in separate test tubes.2. Drop simultaneously equal lengths (about 1cm) of magnesium ribbon and note thetime it takes for the magnesium to dissolve in each use.B. Surface Area1. Weigh a small iron nail to the nearest hundredths of a gram and weigh an equalamount of iron fillings.2. Place them in a separate test tubes.3. Add simultaneously 3 mL of 3N hydrochloric acid and compare the rates of reaction.C. Temperature1. Place 5 mL each of 0.1N sodium thiosulfate solution into 5 test tubes.2. Place all five test tubes in the water bath and let it stand for 1 minute.3. Record the temperature of the water bath. Remove the first test tube from thewater bath and place it in the test tube rack.4. Add 1 mL of 0.1M sulfuric acid and stir with a glass rod. Record the time it takes…
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please all correct answers for a thumbs up !!!
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Please help me please . If u have to some of my credit questions that's ok
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Volumetric pipettes are designed to deliver a very precise amount of liquid, but only if you
O a. submerge the end of the pipette into the solution you are delivering.
O b. allow the pipette to drain freely, and leave any residual solution in the pipette.
C. use the bulb to blow out any residual liquid left in the pipette.
O d. hold the pipette at a 45 degree angle and ensure that all the liquid is delivered.
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Please help me with the last 4 boxes
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BALANCING EQUATION
3. _ MgF2 + _ Li2CO3 --> _ MgCO3 + _ LiF
4. _ Pb(OH)2 + _ HCl --> _ H2O + _ PbCl2
5. _ Na3PO4 + _ CaCl2 --> _ NaCl + _ Ca3(PO4)2
TYPEWRITTEN ONLY PLEASE FOR UPVOTE. DOWNVOTE FOR HANDWRITTEN.
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i need (Theoretical yield)
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Please help with 6 &7
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Desk
Name
Date
Lahoratory Instructor
Unknown nen, or letter
REPORT SHEET
EXPERIMENT
Gravimetric Analysis
6.
5%.
of a Chloride Salt
Trial I
Trial 2
Trial 3
O SS g
0.96
0.25
O.46 8
0-82
6.25
Mass of sample
Mass of filter paper + AgCI
O.87
0.25
Mass of filter paper
Mass of AgCI
Mass of Cl in original sample
(show calculations)
W
1.
Percent chloride in original MPle
(show calculations)
Average percent chloride (show calculations)
Standard deviation (show calculations)
Relative standard deviation expressed
as a percent (show calculations)
Do any of your results differ from the mean by more than two standard deviations?
Reported percent chloride
Copyriglht C 2018 Pearson I duc atun, Inc
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Why does the tanker crush?
Step 1. Observe the giff of the tanker.
Step 2. Identify the variables that may be involved and record on CER form
in OneNote.
Step 3. Make a Claim and add it to form in OneNote.
Step 4: Support your claim with evidence (mathematical, diagrammatic,
graphically, and texual (observations)).
Step 5. Construct an argument on the phenomenon from the giff. (NOTI
ou
may copy the gill right into your notebook.)
Tanker crush from Giffere
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Can you please help with the table?
Thanks
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Reacción precipitada
2. _____(NH4)2SO4 (ac) + _____ NiCl2 (ac) ---> _____NH4Cl ( ) + _____NiSO4 ( ).
Please type answer note write by hend.
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Before proceeding to the analysis, the ____________ of the sample must be considered.
a. size
b. content
c. dryness
d. homogeneity
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20. How does the operator control digestion time in an
aerobic digester?
1. By controlling degree of sludge thickening
before digestionmoon als sis and
2. By measuring out the amount of polymer
added how
3. By automatically controlling when the tank
s and closes through valves and the
SCADA system
opens
4. By controlling sludge blanket depth and
thickness
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THE QUESTION IS AT THE PICTURE... 2 QUESTIONS ONLY.. AND THE GIVEN PROBLEMS IS THE ONE I TYPED... example table is shown.. but im not sure if it is correct... disregard my answer if it is wrong... C. Temperature1. Place 5 mL each of 0.1N sodium thiosulfate solution into 5 test tubes.2. Place all five test tubes in the water bath and let it stand for 1 minute.3. Record the temperature of the water bath. Remove the first test tube from thewater bath and place it in the test tube rack.4. Add 1 mL of 0.1M sulfuric acid and stir with a glass rod. Record the time it takes forthe turbidity to appear.5. Increase the temperature of the water bath by about 10℃, as you remove the 2ndtest tube and do step 4.6. Do the same with the 3rd, 4th, and 5th test tubes with 10℃ rise in the temperature.
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Pls answer 3 & 4
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A composite specimen has a dimensions with length (5 cm) and width (3 cm) and height (1 cm).
Consist of (Al) as a matrix and (Al,O;) particles as a reinforcement. The volume fraction of (Al)
matrix was (70 %). Calculate the mass of (Al) and (Al;O;) and the total mass.
Note:
Ps =3.077 g/cm³
Pm =2.69 g/cm³
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essenger_media/?thread_id=100006994203669&attachment_id=572074400521067&message_id=mid.%24cAAAB8JTHra-GLYZIWE_ECAWRL-n
Sample Pretreatment on Calibration
Sample Problem: A water sample was tested
for iron content, but was diluted prior to
obtaining the instrument reading. This dilution
involved taking 10.00 mL of the sample and
diluting it to 100.00 mL. If the instrument
reading gave a concentration of o.891 ppm for
this diluted sample, what is the concentration
in the undiluted sample?
Cs =
O Approach A: Compute for the weight of solute
and then the concentration
O Approach B: use the dilution factor (dilution
volume/sample volume)
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Gravimetric Analysis
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THE QUESTION IS AT THE PICTURE... 2 QUESTIONS ONLY.. AND THE GIVEN PROBLEMS IS THE ONE I TYPED........ATTACHED PHOTO IS MY ANSWER BUT PLEASE CORRECT ME IF I AM WRONGA. Concentration1. Place 3 mL each of 6N, 3N, & 1.5N hydrochloric acid in separate test tubes.2. Drop simultaneously equal lengths (about 1cm) of magnesium ribbon and note thetime it takes for the magnesium to dissolve in each use.B. Surface Area1. Weigh a small iron nail to the nearest hundredths of a gram and weigh an equalamount of iron fillings.2. Place them in a separate test tubes.3. Add simultaneously 3 mL of 3N hydrochloric acid and compare the rates of reaction.C. Temperature1. Place 5 mL each of 0.1N sodium thiosulfate solution into 5 test tubes.2. Place all five test tubes in the water bath and let it stand for 1 minute.3. Record the temperature of the water bath. Remove the first test tube from thewater bath and place it in the test tube rack.4. Add 1 mL of 0.1M sulfuric acid and stir with a glass rod.…
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8. Pay attention to the lipbalm formula of aloe vera extract (Aloe vera.L): Glycerin 5% Cera flava 10% Nipagin 0.18% Lanolin 15% Oleum cacao ad 100% Aloe vera extract 10% The preservative in the formula is ....
A. aloe vera extractB. cera flavaC. nipaginD. oleum cacao
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I need help finding the %Composition for %cychohexane and %toluene. The formula (area of peak/total area) * 100%
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please answer and explain 3a in terms easy to understand. thank you.
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I just want the Calculation.
EXPERIMENT: ESTIMATION OF TOTAL SUSPENDED SOLID AND TOTAL DISSOLVED SOLID IN WATER SAMPLE (TSS)
Aim: To determine the amount of Total suspended solid and Total Dissolved Solid in the given water sample.
Apparatus & Chemicals: weighing balance, filter paper, heater, oven, glassware, distill water, Chemicals: unknown water samples
Theoretical Background: ….
Observation table for TSS:
Sr no
Sample Volume (ml)
Weight of Filter paper and dry residue in (mg) [As]
Weight of Filter paper in (mg) [Bs]
1
50
133
122
2
50
124
114
Observation table for TDS:
Sr no
Sample Volume (ml)
Weight of Crucible and dry residue in (mg) [Ad]
Weight of Crucible in (mg) [Bd]
1
50
7566
7506
2
50
8774
8710
Calculation:
TSS in mg / lit or ppm = (As-Bs)*1000 / volume of sample in ml
TDS in mg / lit or ppm = (Ad-Bd)*1000 / volume of sample in ml
Result & discussion:
Precautions:
References:
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Please help me with i,j,k and l
Data is provided in screenshot
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LAS-1-Q3.pdf
O File | C:/Users/acer/Desktop/Third%20Grading/1.%20First%20Week/Gen%20Chem/LAS-1-Q3.pdf
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3. Make generalization or conclusions about the property of water that you performed
2.
Plain water
Materials needed
1 glass
Water
Instructions:
1. Fill the glass with water to the top
2. Add more water to the glass
3. Observe the shape being formed at the sides of
water
Guide questions:
1. What property of water is being shown in the experiment?
2. What happens when you add more water to the glass that is already full?
3. Make generalizations/ conclusions about the property of water that was shown in the procedure.
3.Tissue ply
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Please do all.
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A type of cast iron containing 3.1-4 wt% C and 1.7-3 wt% Si. *
a. Compact graphite
b. Malleable cast iron
c. Grey Cast iron
d. White cast iron
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molar mass of the fluorotaluol. Dugo
P1A.7 A constant-volume perfect gas thermometer indicates a pressure of
6.69 kPa at the triple point temperature of water (273.16 K). (a) What char
of pressure indicates a change of 1.00 K at this temperature? (b) What pres
indicates a temperature of 100.00 °C? (c) What change of pressure indicatem
change of 1.00 K at the latter temperature?
P1A.8 A vessel of volume 22.4 dm contains 2.0 mol H,(g) and 1.0 mol N,(g)
at 273.15 K initially. All the H, then reacts with sufficient N, to form NH,.
Calculate the partial pressures…
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Please All option information and correct answer
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A 10 N aqueous sulfuric acid solution (30 degree Tw) is made to react with a 55% aqueous NaOH solution (64 degree Be, heavier than water) to form 135 g of Na2SO4 per 100 mL NaOH solution. The volume ratio of the acid solution to the base solution is 2: 1. Find:
a. the Limiting reactant; excess reactant
b. % excess reactantc. Degree of completiond. % composition by weight of the materials after reaction
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- Help I really have no idea if I calculated it rightarrow_forwardTable 8.7 (data) HCI plug location 10 NH3 plug location 60 Deposit location 32 Table 8.8 (report) HCI Mol. weight NH3 Mol. weight HCI Diff. distance NH3 Diff. distance Rate ratio (exp.) Rate ratio (theor.) https://youtu.be/23hobwUe7-M Lab videoarrow_forwardTHE QUESTION IS AT THE PICTURE... 2 QUESTIONS ONLY.. AND THE GIVEN PROBLEMS IS THE ONE I TYPED............. PLEASE TYPE YOUR ANSWER PLEASE....A. Concentration1. Place 3 mL each of 6N, 3N, & 1.5N hydrochloric acid in separate test tubes.2. Drop simultaneously equal lengths (about 1cm) of magnesium ribbon and note thetime it takes for the magnesium to dissolve in each use.B. Surface Area1. Weigh a small iron nail to the nearest hundredths of a gram and weigh an equalamount of iron fillings.2. Place them in a separate test tubes.3. Add simultaneously 3 mL of 3N hydrochloric acid and compare the rates of reaction.C. Temperature1. Place 5 mL each of 0.1N sodium thiosulfate solution into 5 test tubes.2. Place all five test tubes in the water bath and let it stand for 1 minute.3. Record the temperature of the water bath. Remove the first test tube from thewater bath and place it in the test tube rack.4. Add 1 mL of 0.1M sulfuric acid and stir with a glass rod. Record the time it takes…arrow_forward
- please all correct answers for a thumbs up !!!arrow_forwardPlease help me please . If u have to some of my credit questions that's okarrow_forwardVolumetric pipettes are designed to deliver a very precise amount of liquid, but only if you O a. submerge the end of the pipette into the solution you are delivering. O b. allow the pipette to drain freely, and leave any residual solution in the pipette. C. use the bulb to blow out any residual liquid left in the pipette. O d. hold the pipette at a 45 degree angle and ensure that all the liquid is delivered.arrow_forward
- Please help me with the last 4 boxesarrow_forwardBALANCING EQUATION 3. _ MgF2 + _ Li2CO3 --> _ MgCO3 + _ LiF 4. _ Pb(OH)2 + _ HCl --> _ H2O + _ PbCl2 5. _ Na3PO4 + _ CaCl2 --> _ NaCl + _ Ca3(PO4)2 TYPEWRITTEN ONLY PLEASE FOR UPVOTE. DOWNVOTE FOR HANDWRITTEN.arrow_forwardi need (Theoretical yield)arrow_forward
- Please help with 6 &7arrow_forwardDesk Name Date Lahoratory Instructor Unknown nen, or letter REPORT SHEET EXPERIMENT Gravimetric Analysis 6. 5%. of a Chloride Salt Trial I Trial 2 Trial 3 O SS g 0.96 0.25 O.46 8 0-82 6.25 Mass of sample Mass of filter paper + AgCI O.87 0.25 Mass of filter paper Mass of AgCI Mass of Cl in original sample (show calculations) W 1. Percent chloride in original MPle (show calculations) Average percent chloride (show calculations) Standard deviation (show calculations) Relative standard deviation expressed as a percent (show calculations) Do any of your results differ from the mean by more than two standard deviations? Reported percent chloride Copyriglht C 2018 Pearson I duc atun, Incarrow_forwardWhy does the tanker crush? Step 1. Observe the giff of the tanker. Step 2. Identify the variables that may be involved and record on CER form in OneNote. Step 3. Make a Claim and add it to form in OneNote. Step 4: Support your claim with evidence (mathematical, diagrammatic, graphically, and texual (observations)). Step 5. Construct an argument on the phenomenon from the giff. (NOTI ou may copy the gill right into your notebook.) Tanker crush from Gifferearrow_forward
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