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Paper

Papers are thin, flat materials produced by pressing moist fibers (usually cellulose pulp derived from rags, grass or wood) and drying them into flexible sheets. They are primarily used for writing, printing or packaging.

2,231 Questions

When is filter paper used?

Filter paper is used to separate solids from liquids or to collect precipitates in chemistry experiments. It is commonly used in filtration processes to remove impurities and unwanted particles from a liquid mixture. Additionally, filter paper is used in laboratories to isolate and dry solid compounds.

How many 20 x 30 sheets of paper are in 1 ream?

A ream of paper is a quantity of the same size and quality, 1 ream is 20 quires or 500 sheets

What term refers to softened wood fibers used to make paper?

Pulp is the term used to refer to softened wood fibers used in the production of paper. These fibers are processed and formed into sheets that eventually become paper products.

How do you calculate gsm in paper?

Take a paper of standard size. Measure its mass in gram using an electronic balance. Find its dimensions (length and breadth) in meter. Find the area in meter2. Get the gsm by dividing the mass in gram by area in meter2.

Example: If the mass of a 42cmx33.5cm paper is 8.15gram then its gsm is 58 .

(8.15/.42/.335 = 58)

You will get more accurate results by using multiple sheets of paper. I usually use at least 10 sheets of paper, then you can either find the total area of the 10 sheets (multiply area of 1 sheet by 10), or divide the mass that you measured by 10, before doing the gsm calculation.

How is paper changed chemical or mechanically to make new uses possible?

One way that paper can be changed is by adding gloss to it. Glossed paper is very smooth and is mainly produced because you can't use lead on it, therefore keeping the paper clean and fresh. The only way you can write on glossed paper without damaging the gloss is by using a marker.

Wrap a thin paper strip tightly around an iron rod . try to burn the paper with candle while rotating the iron rod continuously . does it burn .explain your observation?

If you introduce the rod with the round strips into the flame of a candle, the paper will not catch fire. The fire will lick the paper but not burn down until the iron rod becomes hot. This is because iron rod just like any other metal is a good conductor of heat, it leads away the heat obtained by paper from the candle flames. Replace the iron rod by a wooden stick and paper will burn because wood is a poor conductor of heat. With copper rod the experiment is more successful.

Why Can you not see youself in a piece of paper?

Because unlike in a mirror, the light does not bounce off the paper, but it is absorbed. People use paper to write because the absorbed light contrasts with the graphite of the pencil, making it easy to adjust to, or read the literature.

What is the white clay used in manufacturing paper?

The white clay used in manufacturing paper is called kaolin clay. It is added to paper to improve its brightness, smoothness, and opacity. Kaolin clay also helps to control the ink absorption and improve the overall print quality of the paper.

How do you burn the edges of a piece of paper?

To burn the edges of a piece of paper without burning your house down you will need:

1 lighter

Lemon Juice

Paper

A sink or bowl of water

Brown ink

  1. Put lemon juice on the edges of the paper so it covers 2.5 inches (6.41 cm) if you have plain paper. If you have writing on it put lemon juice so it ends right before the writing.
  2. Turn on lighter and carefully put move it across the edges ( If paper catches on fire put it in the sink or bowl full of water unless you can blow it out)
  3. Take the brown ink and slide it across the surface of the paper.

IT IS FABULOUS AND WORKS LIKE A CHARM!

By, Kenzie

How hot to burn paper?

Paper burns at around 450 degrees Fahrenheit, but the exact temperature can vary depending on factors like humidity and the type of paper. It's important to exercise caution when burning paper to prevent the fire from spreading.

A ream of paper consists of 100 pieces How many pieces of paper in 4307 reams?

(4,307 reams) x (100 sheets per ream) = 430,700sheets.

(actually, a ream of A4 paper contains almost 500 sheets)

Why the residue is left behind on the filter paper?

The residue is left behind on the filter paper because the filter paper acts as a barrier that traps solid particles while allowing liquids to pass through. As the liquid passes through the filter paper, solid particles that are too large to pass through get trapped, resulting in the residue accumulating on the filter paper.

My colleague recommends a journal called "Journal of Applied Mathematics and Physics" to me. How about this journal Did anyone publish a paper in this journal?

Journal of Applied Mathematics and Physics is an international journal dedicated to the latest advancements in applied mathematics and physics. The goal of this journal is to provide a platform for researchers and scientists all over the world to promote, share, and discuss various new issues and developments in different areas of applied mathematics and physics. We aim to publish high quality research articles in terms of originality, depth and relevance of content, and particularly welcome contributions of interdisciplinary research on applied mathematics, physics and engineering.

Here's its Google entry description.

I read the introduction and viewde several articles. The journal has been developing well for the last ten years. It includes many famous theories and new ideas in the field of physics. The normality should be no problem, but as a fellow physicist, I have different opinions on my own. All in all, not bad.

Which of a papers has a greater surface area flat sheet of papaer or a crumpled sheet of paper?

The surface area of a sheet of paper is that two-dimensional boundary of the paper that is exposed to the outside surroundings.

For example: Assume the surface area of a sheet of paper of area size a is A = 2a because there are two distinct surfaces (e.g., front and back) exposed to the surroundings.

But now we fold the sheet into half. So now the surface area exposed to the surroundings is 1/2 a X 2 = a < A.

In other words, by folding the paper in half we have reduced the surface area by one-half. If we simply extend that thought to include crumpling a piece of paper as meaning creating lots of folds it is reasonable to assume that the amount of area exposed to the outside will be reduced.

In other words, the surface area of a crumpled piece of paper will be less than or equal to the same area of the uncrumpled piece. But generally and typically it will be less than the uncrumpled area. ANS

Is this statement true or false if you fold the paper so P is on the fold and the 2 sides of L mach up, the line formed by crease is parallel to L?

True. When you fold the paper so that point P lies on the fold line and the two sides of line L match up, the crease formed will be parallel to line L. This is because the fold bisects the angle formed by the two sides of line L, creating two congruent angles, which in turn makes the crease line parallel to line L.

What is the chemical formula of paperboard?

The chemical formula of paperboard is primarily cellulose, with additional components such as hemicellulose, lignin, and water. The exact composition can vary depending on the type of paperboard and its intended use.

What color does Litmus paper turn when dipped in nail polish remover?

Litmus paper will turn blue when dipped in nail polish remover, indicating a basic pH. Nail polish remover typically contains acetone, which is a weak base.

Is vellum translucent transparent or opaque?

Vellum is translucent, allowing light to pass through but not fully transparent like glass. It has a semi-opaque quality that diffuses light and creates a softer appearance.

Why ink drop spread on blooting paper?

When an ink drop is placed on blotting paper, the paper absorbs the liquid due to its porous nature. The capillary action of the paper pulls the ink into its fibers, causing it to spread and create a larger, more diffuse shape. This spreading occurs because the ink is drawn along the paper's fibers by surface tension and absorbency.

Is paper water-proof?

When folded correctly it can be waterproof

Is parchment paper semi permeable?

Yes, parchment paper is semi-permeable, meaning it allows air and moisture to pass through while blocking oils and liquids. This property makes it useful for baking and cooking purposes.