Homework Answers
Using the formula for volume, it can be seen that the volume
change is disc A is zero.![solution: Volume of disc A = 2.0 cm3 ginen ] (Before soaking) Volume of disc A - arah = A x(2.50 3²x0-40 cm (Aftere soaking -](http://img.homeworklib.com/questions/fd6ac560-7044-11ea-a7ec-ad458e279ea6.png?x-oss-process=image/resize,w_560)
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help with volume calculation and percent change
calculation
CHEM 1151 - Lab Manual REPORT SHEET Osmosis-The...
how do i calculate percent change Data: Potato Disks BEFORE Soaking (1 point for each blank)...
how do i calculate percent change
Data: Potato Disks BEFORE Soaking (1 point for each blank) Mass Diameter Height Potato Disk "A" 20 % w/v NaCl 2.6689 2.50cm 0.40cm Potato Disk "B" 0.9 % w/v NaCl 2.6829 2.30cm 0.50cm Potato Disk "C" Distilled Water 2.8749 2.50cm - 0.50cm Data: Potato Disks AFTER Soaking (1 point for each blank) Mass Diameter Height Potato Disk "A" 20 % w/ NaCl 2.190a 2.50 cm 0.40 cm Potato Disk "B" 0.9 % w/v Naci...
need help writing an abstract for a lab report about observing osmosis in potato cubes. anu...
need help writing an abstract for a lab report about observing
osmosis in potato cubes.
anu wengil LIILITUD lll as lile Tinal weight. Weight of potato cubes Beaker solution Initial weight Final weight (after 1 hour) 0.9% saline solution (isotonic) Distilled water 17.5709 15.9309 14.3139 (hypotonic) 2.5% saline water 17.584 16.6259 B. Bu 13.3779 (hypertonic)
Lab 2A: Introduction In this lab, you will be studying osmosis across the membrane of potato...
Lab 2A:
Introduction
In this lab, you will be studying osmosis across the membrane of
potato cells. You will create equal-sized pieces of potato and then
place the pieces in solutions with differing concentrations. You
will then, over time, measure any changes that take place in the
size and weight of the potato pieces.
To measure changes in size, you will need either a gram scale
(like a food scale) or a millimetre ruler. It is best if you have...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase? i think it decreases but i'm not sure. and if a plant cell has a lower water potential than its surroundings and if pressure=0, is the cell hypertonic(in terms of solute concentration) or hypotonic to its environment? will the cell gain or lose water? any ideas...?http://en.wikipedia.org/wiki/Water_potentialanalysis queswhat is water potential?Osmosis Lab /27819 Name: ________________________________ Date: ___________...
21. The ______ prevents plants cells from bursting when place in a ____ solution. a) centrioles-hypotonic...
21. The ______ prevents plants cells from bursting when place in a ____ solution. a) centrioles-hypotonic b) chloroplasts-hypertonic c) plasma membrane-hypertonic d) vacuole-hypertonic e) cell wall-hypotonic 22. Specialized cells like your own lung cells each lack which of the following organelles which are commonly found in an onion. a) cell membrane b)cell wall c)ribosomes d)nucleolus e) none of the above ______ 23. White blood cells engulf and destroy foreign particles by a process known as phagocytosis which is actually a)...
74 Percent Concentration -The amount of solute dissolved in a fixed amount of solvent is called the concentration of th...
74 Percent Concentration -The amount of solute dissolved in a fixed amount of solvent is called the concentration of the solution. Concentrations are typically expressed as Mass al.) (% m/m) which is the mass of the solute (g) divided by the mass of the solution [solute+ solvent] (g)x 1000/0; or as Volume ol.) (% v/v ) which is the volume of the solute in a fixed volume of solution (1O0mL of solution) x 1000/0; or less commonly in the laboratory,...
Need help please SOLUTION MAKING in water. Calculate the amount of NaCl you need to weigh...
Need help please
SOLUTION MAKING in water. Calculate the amount of NaCl you need to weigh out. 1 (a). You need 500mL of 15% (w/v) NaCl 1(b) What approximate volume of water would you dissolve the NaCl in? Please give a range of volumes. 1(c). Assuming that adding the NaCI to your original volume of water caused the volume to increase by 50mL before you added additional water to reach your final volume, what is the DENSITY of your final...
titration lab report additional images of lab report QUESTIONS 1. A student masse 0878 of an...
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
Hi I am im a biochemistry lab and we are doing an experiment titled: PCR Amplification...
Hi
I am im a biochemistry lab and we are doing an experiment titled:
PCR Amplification of LeuRS F C Terminal Domain. I am having
troubles figuring out the rest of my caluclations.
I already did the calculations for the first dilution set, I
was wondering how I would do the calculation for the second
dilution set.
Also I was wondering how I would determine the theoretical
values for my data. Is there a specific formula I can use?
If...
how do i calculate percent change
Data: Potato Disks BEFORE Soaking (1 point for each blank) Mass Diameter Height Potato Disk "A" 20 % w/v NaCl 2.6689 2.50cm 0.40cm Potato Disk "B" 0.9 % w/v NaCl 2.6829 2.30cm 0.50cm Potato Disk "C" Distilled Water 2.8749 2.50cm - 0.50cm Data: Potato Disks AFTER Soaking (1 point for each blank) Mass Diameter Height Potato Disk "A" 20 % w/ NaCl 2.190a 2.50 cm 0.40 cm Potato Disk "B" 0.9 % w/v Naci...
need help writing an abstract for a lab report about observing
osmosis in potato cubes.
anu wengil LIILITUD lll as lile Tinal weight. Weight of potato cubes Beaker solution Initial weight Final weight (after 1 hour) 0.9% saline solution (isotonic) Distilled water 17.5709 15.9309 14.3139 (hypotonic) 2.5% saline water 17.584 16.6259 B. Bu 13.3779 (hypertonic)
Lab 2A:
Introduction
In this lab, you will be studying osmosis across the membrane of
potato cells. You will create equal-sized pieces of potato and then
place the pieces in solutions with differing concentrations. You
will then, over time, measure any changes that take place in the
size and weight of the potato pieces.
To measure changes in size, you will need either a gram scale
(like a food scale) or a millimetre ruler. It is best if you have...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
74 Percent Concentration -The amount of solute dissolved in a fixed amount of solvent is called the concentration of the solution. Concentrations are typically expressed as Mass al.) (% m/m) which is the mass of the solute (g) divided by the mass of the solution [solute+ solvent] (g)x 1000/0; or as Volume ol.) (% v/v ) which is the volume of the solute in a fixed volume of solution (1O0mL of solution) x 1000/0; or less commonly in the laboratory,...
Need help please
SOLUTION MAKING in water. Calculate the amount of NaCl you need to weigh out. 1 (a). You need 500mL of 15% (w/v) NaCl 1(b) What approximate volume of water would you dissolve the NaCl in? Please give a range of volumes. 1(c). Assuming that adding the NaCI to your original volume of water caused the volume to increase by 50mL before you added additional water to reach your final volume, what is the DENSITY of your final...
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
Hi
I am im a biochemistry lab and we are doing an experiment titled:
PCR Amplification of LeuRS F C Terminal Domain. I am having
troubles figuring out the rest of my caluclations.
I already did the calculations for the first dilution set, I
was wondering how I would do the calculation for the second
dilution set.
Also I was wondering how I would determine the theoretical
values for my data. Is there a specific formula I can use?
If...
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