# "Filter Paper" Essays and Research Papers

1 - 10 of 500

### Filter Paper

weighed. From the data, the formula weight and identity of the unknown metal carbonate is determined. Pre-lab question Mass of crucible + M2CO3 12.627 g Mass of crucible 10.655 g Mass of M2CO3 1.972 g Mass of filter paper + CaCO3 2.436 g Mass of the filter paper 0.598 g Mass of the CaCO3 1.838 g Moles of CaCO3 Mol Molar mass of M2CO3 g/mol Identity of M2CO3 Percent error % 1. From the mass of CaCO3, calculate the moles of CaCO3 precipitated. 2. Calculate the molar mass...

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### Paper Cone Investigation

Paper Cone Investigation Lisa Han 10MF Design Research Question: This investigation will determine how the sector sizes of the piece of the filter paper affect the terminal velocity for the cone to fall. The following will be kept constant meter ruler, stopwatch, and filter paper. Hypothesis: ‘If the sector size is the increase, then the terminal velocity will decrease.’ The reason is that if the sector size is bigger, the surface area of the cone will become smaller. If the surface area...

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### Calcium Carbonate and Eggshell

cylinder, funnel, filter paper, ring stand, balance Procedure: 1. Obtain a sample of brown or white eggshell and record its mass. 2. Place the eggshell in a 250ml beaker and add 15ml of HCl. 3. Stir until all bubbling stops. 4. Obtain a piece of filter paper, white your initials on the edge with pencil, then record the mass of the paper. 5. Place the filter paper in the funnel, in the ring stand, and place the 100ml beaker below the funnel. 6. Filter your HCl-eggshell...

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### Soil Lab report

soil was placed on wet filter paper and the water poured steadily into the funnel. The amount of water drained through the soil was measured. Valley A Wet filter paper 2.2g Dry Soil 2.0g Wet filter paper & dry soil 4.2g Wet filter paper & wet soil 12.2g Wet soil only 8.0g Wet filter paper &wet soil 6.4g Final wet soil only 2.2g Valley B Wet filter paper 2.1g Dry Soil 4.0g Wet filter paper & dry soil 6.1g Wet filter paper & wet soil 8.4g Wet...

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### Ap Chemistry - Gravimetric Lab

| Mass of M2CO3 | 2.031 g | Mass of Filter Paper | 0.969 g | Mass of CaCO3 | 1.5782 g | Moles of CaCO3 | 0.01577 moles | Molar Mass of M2CO3 | 128.79 g/mol | Identity of M2CO3 | K2CO3 (potassium carbonate) | Percent error | 6.8% | Calculations and Graphs: Mass of M2CO3 Mass of Crucible and M2CO3 minus Mass of Crucible = mass of M2CO3 27.752 g – 25.721 g = 2.031 g Mass of CaCO3 Mass of Filter Paper and CaCO3 minus Mass of Filter Paper = Mass of CaCO3 2.551 g – 0.969 g = 1...

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### Mole- Mole Chemistry

Finally we weighed the filter paper and recorded the mass in our data table. Our result for this lab was that both total product and the mass of the total reactants was 2.71g we had a 2.5 difference. This shows that we did not validate the stoichiometry of mass. That we lose moles or it’s mass. The physical changes in this lab were that the blue copper rocks changed to blue liquid. The Error we faced in this lab was that copper residue did not end up in the filter paper. II. Objective...

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### The Effects of Light and Gravity on the Growth of Sunflower Seeds

skin. | Hold forceps steady and try to avoid contact with skin. |   Equipment: Geotropism * 4x large test tube * 4x filter paper * 4x sunflower seed * 1x test tube rack   Phototropism * 1x cardboard box * 4x sunflower seed * 1x pair of scissors * 1x forceps * 4x test tube * 4x filter paper * 1x test tube rack   Variables: Geotropism * Independent variable: orientation of sunflower seed * Dependant...

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### Separation of Mixtures and Solids

the first experiment was initiated. The mixture of solids was weighed out as well as the 10cm square piece of paper and the weighing dish. The mixture was spread out in a very thin layer on a piece of paper, the magnet was wrapped with clear plastic and the magnet was passed over the mixture several times to remove the iron from the mixture. The iron was placed on the 10cm square paper and weighed. The next step was to separate out the sand. The sand was placed in the beaker with 50mL of water...

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### Lab Experiment Stoichiometry of a Precipitation Reaction

measured into a paper cup because that was the measure calculated for Na2CO3 using stoichiometry in the step before. 25 mL of distilled water was added and stirred. Then, that solution was poured into the 100 mL beaker and it formed a precipitate (calcium carbonate) instantly with the calcium chloride solution. Next, a filteration system was set up: A small cup was placed inside a larger cup for support and a funnel placed in to the small cup. Then, a 1.1 gram circle of filter paper was folded in...

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### Experiment 10 & 11

chance to settle, collect it by gravity filtration. Wash the collected solid sparingly with cold water. Allow the water to drain from the collected solid. Then transfer the filter paper and precipitate to a paper towel so that excess moisture can be absorbed. Before you leave the lab, place your precipitate (still in its filter paper cone) in a beaker and leave it in your desk to air dry for at least three days. After your precipitate has dried thoroughly, weigh it on the analytical balance. The Synthesis...

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