Answer:
A bottle that contains 0.95 moles of hydrogen peroxide per liter of solution contains 32.31 g of hydrogen peroxide per liter of the solution.
Explanation:
First, recall that:
Molarity of a substance = no of moles of the substance/volume of the solution in liters.
In this case, the number of moles of hydrogen peroxide is 0.95 mole while the volume of the solution is one liter. Thus;
Molarity of hydrogen peroxide = 0.95/1 = 0.95 M.
Also recall that:
no of moles of a substance = mass of the substance/molar mass of the substance.
Thus;
mass of substance = no of moles x molar mass.
In this case, the no of moles of hydrogen peroxide is 0.95 while the molar mass is 34.01 g/mol. Hence;
mass of hydrogen peroxide = 0.95 x 34.01 = 32.31 g
Hence, a bottle that contains 0.95 moles of hydrogen peroxide per liter of solution contains 32.31 g of hydrogen peroxide per liter of the solution. The solution also has a hydrogen peroxide molarity of 0.95 M.
The amount of hydrogen peroxide in the solution can be expressed in grams per Litre as 32.31 gram of hydrogen peroxide per Litre of the solution.
The amount of mole of hydrogen peroxide in the solution = 0.95 moles
The Molar mass of hydrogen peroxide = 34.0147 g/mol
The mass of hydrogen in the solution can be calculated thus :
Number of moles of hydrogen peroxide × Molar mass of hydrogen peroxide Mass of hydrogen = 0.95 mol × 34.0147 g/mol = 32.314 gTherefore, the bottle contains 31.314 g of hydrogen peroxide per Litre of the solution.
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Which list of lab equipment and tools is a complete list needed to heat a reaction in a beaker with high heat?
Answer:
Many instrument tools are used during experiment. These equipment are very important for an experiment.
Explanation:
In laboratory we conduct an experiment. For an experiment we needed many instrument and tools equipment to conduct a research. There are different type of equipment and tools to conduct an experiment.
These tools are such as:
Pippete or pipet: It is measuring graduated tube. It is used to transfer the precise volume.Test tube brush: These are the tools that are used to clean the glass. Test tube holder: It is a tool that is used to hold the tube over the heat.Erlenmeyer: It is bottle that have narrow neck and bottom is broad is used to mix the chemical. Beaker: It is a flat bottom jar used to transfer liquid and to carry o0ut the reactions. Test tubes: This is a narrow tube container that is used to contain the sample, for heating and reaction.All of the following occur during exercise in order to maintain blood glucose levels, except ______?a. Sympathetic stimulation causes an increase in insulin secretionb. Sympathetic stimulation causes the release of epinephrine and glucagonc. Epinephrine causes the breakdown of glycogen in muscle cells to glucosed. Epinephrine and sympathetic stimulation increase the breakdown of lipids
Answer:
a. Sympathetic stimulation causes an increase in insulin secretion
Explanation:
During exercise glucose is used up by the body especially muscle cells. This leads to the feeling of tiredness normally experienced.
Sympathetic stimulation causing an increase in insulin secretion doesn’t take place as insulin is used for metabolism of food substances and exercise doesn’t require food intake.
Sympathetic stimulation causes the release of epinephrine and glucagon I order to stimulate more glucose production during exercises.
Epinephrine causes the breakdown of glycogen in muscle cells to glucose is also true.
Epinephrine and sympathetic stimulation increase the breakdown of lipids. The breakdown of lipids aids in the production of energy needed by the body cells.
A new species was discovered in the deep jungles of Venezuela. In order to properly name the newly discovered organism, scientists needed to correctly classify it based on certain characteristics that they observed. This organism is capable of movement, performing photosynthesis with chloroplasts, and it also has ribosomes. Using these features, justify your choice of kingdom and why it is not the other kingdoms
Answer:
Kingdom Plantae
Explanation:
According to this question, a new species which possess characteristics including; ability to move, ability to photosynthesize via chloroplast, possession of ribosomes etc, was discovered in the deep jungles of Venezuela. This organism will likely belong to the KINGDOM PLANTAE because of its unique ability to photosynthesize and move.
-This organism cannot be a FUNGI because all fungi are heterotrophic
- This organism cannot be a BACTERIA because bacteria do not possess chloroplast, which is an eukaryotic organelle.
- This organism cannot be an ANIMAL because animals cannot photosynthesize.
- This organism cannot be an ARCHAEBACTERIA because archeans are prokaryotic, hence cannot possess chloroplast
-
Comparing plant and animal cells.what are the errors in the table? Check all that apply
Answer:
There is no table but one difference is plant cells have a cell wall and a vacuole for holding waste animal cells dont have that
question 1. Carbohydrates consist of which of the following elements? (CHOOSE ALL THAT APPLY)
A. Carbon
B. Hydrogen
C. Oxygen
D. Calcium\
question 2. Which of the following statements about carbohydrates are NOT true?
A. Your body uses carbohydrates to give you energy and keep everything going.
B. Carbohydrates can be referred to as simple or complex sugars.
C. Starch is an example of a simple carbohydrate.
D. Starch must be broken down through digestion before your body can use it as an energy source.
Question 3. Proteins are made up of smaller molecules called
A. starches.
B. amino acids.
C. monosaccharides
D. protein synthesis.
question 4. Choose all of the following statements that correctly explain what essential amino acids are:
A.It is essential that our diet provides these amino acids.
B.There are 20 essential amino acids.
C. Peanut butter on wheat bread is an example of a combination of foods that you can mix together to obtain the essential amino acids.
D. Can be considered as saturated or unsaturated.
Answer:
Carbohydrates consist of which of the following elements? (CHOOSE ALL THAT APPLY)
Question 1 options:
Carbon
Hydrogen
Oxygen
Calcium
Question 2 (2 points)
Saved
Which of the following statements about carbohydrates are NOT true?
Question 2 options:
Your body uses carbohydrates to give you energy and keep everything going.
Carbohydrates can be referred to as simple or complex sugars.
Starch is an example of a simple carbohydrate.
Starch must be broken down through digestion before your body can use it as an energy source.
Question 3 (2 points)
Saved
Proteins are made up of smaller molecules called
Question 3 options:
starches.
amino acids.
monosaccharides.
protein synthesis.
Question 4 (2 points)
Saved
Choose all of the following statements that correctly explain what essential amino acids are:
Question 4 options:
It is essential that our diet provides these amino acids.
There are 20 essential amino acids.
Peanut butter on wheat bread is an example of a combination of foods that you can mix together to obtain the essential amino acids.
Can be considered as saturated or unsaturated.
Question 5 (1 point)
Saved
Nutritionists measure the amount of energy in food in Calories. According to the article, fats contain the highest number of Calories.
Question 5 options:
True
False
Explanation:
All the bolded ones aqre correct sorry for lateness just finished test.
Carbohydrates consist of carbon, hydrogen, and oxygen. Starch is not an example of simple carbohydrates. Proteins are made up of amino acids. There are 20 essential amino acids.
What are biomolecules?The nearly 30 trillion cells that make up the human body work together to carry out each of the vital processes of life. Numerous chemical compounds found inside the cells enable them to carry out these vital functions. Biomolecules are the name given to these chemical compounds.
Biomolecules come in a broad variety of shapes and sizes and are engaged in a huge variety of biological processes. They are made up of more than 25 naturally occurring elements, with carbon, hydrogen, oxygen, phosphorus, and sulfur serving as the main ones.
Biomolecule production involves carbon compounds significantly. They combine covalently to create a number of different chemicals. When functional groups like alcohols, amines, aldehydes, ketones, and carboxylic groups are used to replace hydrogen atoms in hydrocarbons, certain biomolecules are referred to be derivatives of hydrocarbons.
Therefore the correct options are 1) A, B, and C; 2) C; 3) B; 4) B.
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Can anyone help me with question 1 and 2 ?
Answer:
A is the substrate and B is the protein
Explanation:
Substrate: thing that is the initial part of a protein reaction
B is the thing that MODIFIES the substrate, the protein.
What happens when pyruvate is converted to lactate?
Answer:
Conversion of pyruvate to lactate during redox reaction oxidizes NADH to NAD+
Explanation:
Pyruvate is converted to lactate by the enzyme lactate dehydrogenase under anaerobic condition.
Conversion of pyruvate to lactate during redox reaction oxidizes NADH to NAD+ . This is because every glucose molecule that will be converted into pyruvate, two NADH molecules are produced and there is need for the NADH molecules to be oxidised back to NAD+ to ensure the continuity and maintenance of glycolysis.
If a patient complained of a "stomach ache" and pointed to the umbilical region as the site of discomfort, which organs located in this region might be the source of the pain?
Answer:
Part of large intestine, small intestine, pancreas, spleen.
20. Name a structure that is located toward the dorsal side of the body, lateral and superior to the hamstring but inferior to the heart.
Answer:
The ilium
Explanation:
What is the purpose of statistical analysis?
Answer:
Explanation: Statistical analysis is the process of generating statistics from stored data and analyzing the results to deduce or infer meaning about the underlying dataset or the reality that it attempts to describe.
When electrons transfer from one atom to another both atom become
Answer:
i think protons?
Explanation:
im not to sure, but i t h i n k protons
What is carbon? Please write a paragraph, I'll mark u as brainliest
Answer:
HOPE THAT WILL HELP YOU
Answer:
Explanation:
Carbon is a chemical element. It is a non - metal and is solid at room temperature. It exists in many forms like graphite, diamond and graphene. It's symbol is C. It's atomic number is 6. It makes up 0.025 % of the earth's crust. It has 6 protons, neutrons and electrons. Its valency is 4.
Hope this helps
plz mark as brainliest!!!!!!
Name the organelle and say how it is important for active transport. Give examples of cells where many of these organelles are found for active transport.
Answer:
Cell membrane is the most important organ required for the active transportation. Active transportation requires cellular energy to achieve movement. In active transportation molecules move across cell membrane from a region of lower concentration to higher concentration.Mitochondria, plasma membrane are examples of cells that are found in cell membrane.
Explanation:
How can reading through the entire investigation before beginning the
"Procedure" help prevent accidents?
Reading through the entire investigation before beginning the procedure can help prevent accidents by giving you the knowledge of what to do beforehand and preparing you for what is to come.
Josh the postmen has eleven red rubber bands. He gives Sunita three bands. Sunita now has twice the number of bands Josh has left. How many bands did Sunita have at the beginning?
Answer:
13
Explanation:
We know that Josh starts with 11 rubber bands and gives away 3. This means that he now has 8 left (11-3=8). Sunita now has the extra 3 which means she now has twice the amount Josh has left. Since we know Josh has 8 left, we can work out that Sunita now has 16 (8x2=16). However this is not how many she had at the beginning as she recieved 3 from Josh. Therefore we can subtract 3 from her current number (16) to find here original number:
16-3= 13
Sunita had 13 rubber bands at the beginning.
Hope this helped!
difference between biological aspect and physical aspect
Answer:
A biological environment is a physical environment that has living things in it.
The only physical environments that I know of that are not biological environments are human-constructed sterile facilities, or planets/moons/asteroids/other celestial objects that can’t support life.
A red blood cell is *blank*
times as long as hemoglobin.
Answer:
empty hemoglobin
Explanation:
Which would best be described as abiotic?
water in a stream
fish in a stream
bacteria in the soil
roots in the soil
Answer:
I believe the answer is water in a stream
Explanation:
Answer:
The answer is A
Explanation:
I just took the test and got it right
Hopefully this helps you
pls mark brainlest
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Is it a polymer or monomer
Answer:
matter
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Can earthquakes and volcanoes lead to landslides?
Answer:
Yes
Explanation:
The force and vibration from an earthquake or volcano can cause a landslide. An earthquake can shake the ground vigorously and cause rocks and dirt on mountains to break apart and start to fall down, causing the landslide.
do parasites have cell walls
What is a major function of growth hormone?
please someone help me with this :,,,,,,)
Answer:
PhD pressure into height is eqala to density formula no sure
Answer:
the formula for density is Mass/volume
density is a measure of the amount of mass/matter that is packed into a specific object/volume
Explanation:
$ 4000 in a mutual fund earns 12% every year. How much will the fund be worth in 20 years?
solve with exponential function
Answer:
44092.705
Explanation:
Initial amount = 4000
Rate of increase = 12%
Time or period = 20 years
Using the exponential function with the relation :
A = Po * e^rt
Where ; A = final amount ; r = rate ; t = period ; Po = Initial amount
A = 4000 × e^(0.12*20)
A = 4000 * e^(2.4)
A = 4000*11.023176
A = 44092.705
Anyone know the answer
In what ways are fats and steroids similar to each other, and in what ways are they different?
Answer:
fats and steroids are both lipids and I are both hydro Hill big fat our store energy from molecules and steroids function as a messenger around the cell membrane
Describe how different types of models could be used to research a disease. Make a list of questions you would ask.
Answer:
A disease model is an animal or cells displaying of the pathological process that are observed in the actual human or animal disease.
Answer:
A disease model is an animal or cells displaying of the pathological process that are observed in the actual human or animal disease
Explanation:
Why do adult stem cells currently have fewer uses in therapeutic cloning than embryonic stem cells? A. Adult stem cells have more restrictions that prevent them from reentering the cell cycle at the G0 stage. B. Embryonic stem cells have longer telomeres and persist for much longer than adult stem cells. C. Adult stem cells may become any type of cell, whereas embryonic stem cells may only become adult stem cells first. D. Embryonic stem cells may become any type of cell, whereas adult stem cells may only become a limited number of cell types
Answer:
Embryonic stem cells may become any type of cell, whereas adult stem cells may only become a limited number of cell types.
(Answer D)
Muscular dystrophy is a neuromuscular disease that weakens a person's muscles. Which main body systems would be involved in this disease? (1 point)
O nervous, muscular, and respiratory
O nervous, muscular, and vascular
O nervous, muscular, and urinary
nervous, muscular, and skeletal
Answer:
answer d is correct
Explanation:
The main body systems that would be involved in muscular dystrophy disease will be A. nervous, muscular, and respiratory.
Muscular dystrophy refers to the neuromuscular disease that weakens a person's muscles. This disease brings about weakness and the loss of muscle mass.It should be noted that when a person has muscular dystrophy, there'll be abnormal genes that'll interfere with how the body system works which makes the person unhealthy.It should be noted that when the muscles are weaker, the person affected will need a wheelchair or might have difficulties breathing. The disease affects the nervous, muscular, and respiratory systems.In conclusion, surgery is needed to treat the person affected.
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Can someone write a paragraph explaining Etiolation. PLEASEEEE
Etioliation means that you water plants that are planted in an area with little to no sunlight. This results in weak stems, smaller leaves, yellow color, etc. The seedlings that are grown in the dark are known as "skotomorphogenesis." Etiolation comes from something called "Auxin's" and Auxin's are moved from the top of the plant to the bottom which creates lateral buds. Typically, etiliation results in the chances being raised for the plant to receive sunlight but causes underiable symptoms.
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