What is the concentration in (g/L) of an 80% sodium hydroxide (NaOH) solution?

Answers

Answer 1

Answer:

concentration =80%×10/40

=20

Related Questions

Anderson and his lab partner each held a tuning fork, 4440 Hz, in their hands. Anderson tapped his tuning fork with a mallet and they listened to the sound it made. "Wait a minute!" exclaimed Anderson's partner. "My tuning fork is vibrating too!" Sure enough, both tuning forks were vibrating although only Anderson hit his with the mallet.what wave property caused the second tuning fork to vibrate? a) diffraction b) interference c) refraction d) resonance
a chemical spill has just killed off all the algae in a part of the open ocean. how will this affect the food webs in that part?
Select ALL the correct answers. A forest was cleared to build a road. Which two would be the most likely effects on the ecosystem?The deforested land will not be able to support large trees again. Some species will develop adaptations to survive in the deforested land. Some populations will migrate out of the deforested area. Some animals will instantly adapt to the deforested environment.
What is the layer of bedrock that is near Earth's surface that forms a continuous shell around Earth called?
Which object has the same shape as a DNA molecule?a ) pyramidal houseb ) rectangular TV screenc )spiral staircased )hexagonal stop sign

Usually expressed as a fraction, this is way of showing the relative size of two numbers, as when 24/30 is written as 4/5, meaning 24 has as many groups of 4 as 30 has groups of 5.

Answers

Answer:

The answer is "ratio"

Explanation:

Ratio is the quantitative relationship between the two figure that depicts that how many times that one figure is there in the another one. In order to get the ratio usually we multiply or divide the that term in the ratio by the same number. In case let us take an example if we divide the terms in the ratio 2:4 by the number 2, then we will able to get a number of or the equal ratio of 1:2. We can also say that it is comparison between the numbers.

Can someone please help me this question?The choices are:
A) move and capture food
B) create and exchange genetic material
C) Store and regulate water
D) make and store energy

Answers

Answer:

A) move and capture food

Explanation:

Amoeba is madeup of single cell and having a true nucleus or membrane around the nucleus. Amoeba belongs to kingdom protista because it has some characteristics of animals such as it can move from one place to another. Amoeba used phagocytosis which is a type of endocytosis in which large substances are entered into the cell. Pseudopod is part of amoeba body which is responsible for the movement and capturing the food.

scientists studying how organisms have changed over time gather information and evidence from a variety of different fields. describe a study a biochemist might design to determine the relationship between ttwo species that are believed to have a common line of descent

Answers

A cladogram can help determine the relationship between species.

Which event is the most common at oceanic-oceanic convergent boundaries? A.

earthquakes

B.

rift valleys

C.

island arcs

D.

volcanic mountain ranges

Answers

I think it's rift valleys because it sounds right, and it's true!! :)

Answer:

C. Island Arcs

Explanation:

Took the quiz, this is accurate.

20. How did Darwin's hypotheses about evolution become scientific theories?

Answers

Answer:

yeet.

Explanation:

Past: yote. Present: yeet. Future: shall yeeteth.

Two test tubes are filled with a solution of bromthymol blue. A student exhales through a straw into each tube, and the bromthymol blue turns yellow. An aquatic green plant is placed in each tube, and the tubes are corked. One tube is placed in the dark, and the other tube is placed in direct sunlight. The yellow solution in the tube in sunlight turns blue, while the one in the dark remains yellow. Which statement best explains why the solution in the tube placed in sunlight returns to a blue color?Question 11 options:

Oxygen was produced by photosynthesis.

Oxygen was removed by respiration.

Carbon dioxide was removed by photosynthesis.

Carbon dioxide was produced by respiration.

Answers

Explanation:

The plant is utilizing CO2 in photosynthesis

Photosynthesis produces glucose and O2 from inorganic CO2, light energy and water.

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Bromothymol blue, an acid indicator, goes from blue to yellow when reacting with acid. The color change in sunlight confirmed the use of CO2, dissolved within the solution as carbonic acid- its removal from the solution makes the more basic, and the solution goes from yellow (acidic) to blue (alkaline).

CO2 + H2O ↔ H2CO3

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released.

Occuring in several complex steps, photosynthesis is a rate limited reaction, it depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally,

water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions and produces molecules of the energy storage molecule ATP through an electron transport chain.
This occurs in the thykaloids, where pigment molecules like chlorophyll reside.
Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.

In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’s cycle via the oxidization of pyruvate( through the process of glycoysis). The electron transport chain, in which oxygen functions as the terminal electron acceptor occurs in both plants and animals.

Learn more about photosynthesis at brainly.com/question/4216541

Learn more about cellular respiration at brainly.com/question/11203046

Learn more about cellular life at brainly.com/question/11259903

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