Answer: The new volume of the air in the syringe is 7.3 mL.
Explanation:
Given: [tex]V_{1}[/tex] = 2.0 mL, [tex]P_{1}[/tex] = 1.02 atm, [tex]T_{1} = 22^{o}C[/tex]
[tex]V_{2}[/tex] = ?, [tex]P_{2}[/tex] = 1.27 atm, [tex]T_{2} = 100^{o}C[/tex]
Formula used to calculate the new volume in syringe is as follows.
[tex]\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}[/tex]
Substitute the values into above formula as follows.
[tex]\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{1.02 atm \times 2.0 mL}{22^{o}C} = \frac{1.27 atm \times V_{1}}{100^{o}C}\\V_{1} = 7.3 mL[/tex]
Thus, we can conclude that the new volume of the air in the syringe is 7.3 mL.
Anthony needs to make a solution with a concentration of 2.5m. He begins with 2.0 iters and a 8.0M solution. What final volume does he need. Tally and solve.
Answer:
The final volume is 6.4 L.
Explanation:
Dilution is reducing the concentration of a chemical and is achieved by adding more solvent to the same amount of solute. In other words, dilution is the procedure that is followed to prepare a less concentrated solution from a more concentrated one, and it simply consists of adding more solvent.
In a dilution the amount of solute does not vary, and as only more volume (and mass) of solvent is being added, the concentration of the solute decreases.
In a dilution the expression is used:
Ci*Vi = Cf*Vf
where:
Ci: initial concentration Vi: initial volume Cf: final concentration Vf: final volumeIn this case:
Ci: 8 M Vi: 2 L Cf: 2.5 M Vf: ?Replacing:
8 M* 2 L= 2.5 M* Vf
Solving:
[tex]Vf=\frac{8 M* 2 L}{2.5 M}[/tex]
Vf=6.4 L
The final volume is 6.4 L.
How many representative particles are there in 10.43g of sugar (C12H22011)?
Answer:
10.43 / 342 × 6.02 × 10 ^23 = 18.34 × 10^ 21
What is the molarity when 25.0 g of the compound NaClO3 is placed in 85.0 mL of solution?
Answer: Molarity when 25.0 g of the compound [tex]NaClO_{3}[/tex]is placed in 85.0 mL of solution is 294.12 M.
Explanation:
Given: Mass = 25.0 g
Volume = 85.0 mL (1 mL = 0.001 L) = 0.085 L
Molarity is the number of moles of a substance divided by volume in liter.
Hence, molarity of given solution is calculated as follows.
[tex]Molarity = \frac{mass}{Volume (in L)}[/tex]
Substitute the values into above formula as follows.
[tex]Molarity = \frac{mass}{volume (in L)}\\= \frac{25.0 g}{0.085 L}\\= 294.12 M[/tex]
Thus, we can conclude that molarity when 25.0 g of the compound [tex]NaClO_{3}[/tex]is placed in 85.0 mL of solution is 294.12 M.
Which tool was most likely used in a procedure if the lab report shows that 300 mL of water was used?
A volumetric flask
A thermometer
A pipette
A graduated cylinder
The answer is A - Volumetric Flask!
what does the prefix non-represent?
O 9 carbon atoms, only
O 9 carbon atoms and 20 hydrogen atoms
O 9 carbon atoms and 18 hydrogen atoms
O 9 carbon atoms and 16 hydrogen atoms
Answer:
O 9 carbon atoms, only
Explanation:
Prefix: non- simply means 9.
Suffix: -ene means double bond, -yne means triple bond, and -ane means single bonded carbons.
please look at the attached photo
A pencil has about 2.4 grams of graphite(carbon) in it. How many atoms is this?
Answer:
2
Explanation:
You decide to race your buddy after school. The race starts at the 10 yard line and ends at the 50 yard line. How long was the race
Answer:
Long of the race = 40 yard
Explanation:
The long of the race is measured from the distance in the beginning (10 yard line) to the distance and the end of the race (50 yard line). The distance of the race is the difference between both lines. That is:
Long of the race = 50 yard - 10 yard
Long of the race = 40 yard
How does chemical weathering differ from physical weathering? A. It causes rocks to change color B. It increases the size of the rock C. It makes the rock stronger D. It makes the rock disappear
Answer:
A. It causes rocks to change color
Explanation:
Weathering can be defined as the gradual decomposition of rock. This means, rocks are broken into pieces or sediments through the process of weathering.
There are two types of weathering process:
1. Physical weathering also known as mechanical weathering. This is the breakdown of rocks into smaller pieces without changing the composition of the rock. Physical weathering is caused by the action of ice, wind, plant growth.
2. Chemical weathering: Here, the rocks changes not just in size of pieces but in its composition. This is when other minerals are applied on the rock in other to dissolve it.
____is the degree of hotness or coldness of a body or place
Which effects would many organisms likely experience if global warming occurs? Check all that apply.
disrupted food webs
increased competition
increased number of glaciers
disrupted life-cycle events
forced relocation
and any MHA fan to
Answer:
Disrupted food webs
increased competition
disrupted life-cycle events
forced relocation
Explanation:
Global warming refers to a gradual rise in the temperature of the earth due to the increase in the concentration of greenhouse gases in the atmosphere which trap infrared radiation close to the earth.
This gradual increase in the temperature of the earth often have devastating effects on the lives of various organisms on earth. These effects include;
Disrupted food webs
increased competition
disrupted life-cycle events
forced relocation
Due to changes that occur in the ecosystem as a result of global warming, many species may be compelled to relocate from place to place. This in turn disrupts food webs and may lead to disruption of life cycle events of the concerned organisms. Decrease in the number of certain populations due to global warming may lead to increased competition among species for food.
PLEASE HELP ASAP - PHOTO ATTACHED
Explanation:
1. 1NH4NO3 = 1N2O+ 2H2O
2. 2k + 2H2O = 1H2 + 2KOH
help me guys please I need answer immediately
Answer:
Royal jelly is a honey bee secretion that is used in the nutrition of larvae and adult queens.
Nuptial flight: a flight of sexually mature social insects (as bees) in which mating takes place and which is usually a prelude to the forming of a new colony; especially : the mass flight and mating of winged sexual forms of ants after leaving the parent nest.
Cocoon: a silky case spun by the larvae of many insects for protection in the pupal stage.
Group B:
Not sure) a- Keep in cold places because when there are changes in weather, it could help the silkworm come out faster.
b-They live together in a large, well organized group and bees engage in complex activities that required works from other community members in the bee society.
c- i dont know this part sorry =(
d-The larvae of a silk moth secrete the silk thread which is used to make clothes. Honey bees produce and store honey which is nutritious food. Silkworm is a creamy white colored insect which is about 2-3 cm long and shining in nature Bee larvae have been shown to be an excellent food source for rearing insects
Explanation:
Answer:
For group A
Explanation:
1. A royal jelly is a substance that is secreted by the worker honeybee's. This is fed to a potential queen bee to help them grow.
2. The nupital flight is part of reproduction for ants, termites, and most bee species.
3. A cocoon is used for the resting pupal stage in the life cycle of animals like butterflies and moths. It is a protective covering and is silky.
4. They feed on mulberry leaves.
convert 0.75km to meter
Answer:
[tex]0.75 \times 1000 = [/tex]
Explanation:
Use ur calculator
Answer:
750m
Explanation:
1 km is equal to 1000m. Therefore all you have to do is multiply 0.75 by 1000 and you will get 750. Hope this helps! :)
What volume of hydrogen will produced at 1.45 atm and a tempeture of 20C by the reaction of 37.6g of magnesium 1Mg+2H2O--> Mg(OH)2+H2
Answer:
V = 25.7 L.
Explanation:
Hello there!
In this case, according to the given information, it turns out possible for us to solve for the volume of hydrogen, by firstly calculating the moles of this gas produced by 37.6 g of magnesium, according to the 1:1 mole ratio between them:
[tex]n_{H_2}=37.6gMg*\frac{1molMg}{24.305gMg}*\frac{1molH_2}{1molMg}=1.55molH_2[/tex]
Now, we use the ideal gas equation:
[tex]PV=nRT[/tex]
To solve for the volume, and obtain:
[tex]V=\frac{nRT}{P}\\\\V=\frac{1.55mol*0.08206\frac{atm*L}{mol*K}*293.15K}{1.45atm}\\\\V=25.7L[/tex]
Regards!
Pls I need help with these I have a test in 1 hour
Answer:
option e
hope helps u
have a nice day
Question 1
Part A
Describe the sequence of adding ingredients to make the recipe for condensed tomato soup. To mix the ingredients, you have an industrial-sized vat with a capacity of 800 L. You also have the ability to heat what is in the vat and/or stir the vat, both of which require energy and therefore, cost you money. Focus on the fact that the manufacturing process should be time efficient and cost efficient in terms of energy use. Be sure to refer to the solubility charts or graphs that you find for salt and sugar during your research. Finally, presume that the tomato powder has low solubility which is not temperature dependent.
Part B
What changes could be made to optimize the manufacturing process?
Answer:
Part A:
"360 grams of NaCl can be dissolved in 1 L water. So, 2000 grams sugar can be dissolved in 1 L water then we can say that the solubility of salt is lesser in water as to sugar and both heightened by increasing the temperature. If we make a batch of 800 L we can add sugar, 1600 kg at 25 0c. We can add salt is 288 kg at 25 0c and the ingredient tomato is having low solubility."
Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/8061-describe-the-sequence-of-adding-ingredients-to-make-the-recipe.html
Part B:
'Manufacturers can generate new value minimize cost and increase operational stability by focusing on 4 broad areas; Management, Supply Circle, Product Design, and Value Recovery.'
Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/2807911-what-changes-could-be-made-to-optimize-the-manufacturing-process.html
In order to make tomato soup, the salt NaCl is first added, then followed by sugar and finally the tomato powder.
What are the ingredients required in making tomato soup?Tomato soup is made of the following ingredients:
Tomato powder salt, NaClsugarIn order to make tomato soup, the salt NaCl is first added, then followed by sugar. This is to ensure increase in the boiling point of water and to reduce the heating time of the tomato soup.
The solution is heated to induce more dissolution if solute and finally the tomato powder is added.
In order to optimize the manufacturing process, changes should be made in the design, supply and composition of the soup.
Therefore, an optimized manufacturing process will reduce cost of production.
Learn more about tomato soup at: https://brainly.com/question/21475711
When 0.46 mol of magnesium chloride reacts with sodium to produce sodium chloride
and magnesium. how many grams of sodium chloride will be produced?
Answer:
53.8g
Explanation:
plz let me know if the answer is right than I can explain it to u :)
Please help with this , it’s very important
Explanation:
a) Cr is acid K is base
b) Ca is base and the other left part is acid
c)Ca is base and F2 is acid
d) NH4 is acid and SO4 is base
If there are 10.00 moles of ascorbic acid(C6H8O6), what is the mass of ascorbic acid?
Given
no of moles = 10 mol
we know that mass of 1 mole ascorbic acid is 176.12,
mass id 10 mole of ascorbic acid = 10× 176.12
= 1761.2 g
Answer - 1761.2 grams
I Need Help!!!
Let's say one of our bicycles tires has a volume of 30.0 Liters at 300 K. What will happen if
we double the volume?
Answer:
I think that temperature will be cut in half.
When volume increases, pressure decreases. As pressure decreases, temperature decreases. So if you double volume, pressure is halved and so will the temperature. I'm new to this, but I think that's the answer . Tell me if I'm right good luck!
If anyone could answer this that would be great! Will mark brainliest!
Answer: I think it's 1 ATM and 0 F
Explanation:
Balance the following equation:
-_MgCO3 → _MgO + __CO2
Answer:
Decomposition
Explanation:
Magnesite = Magnesium Oxide + Carbon Dioxide
The galvanic cell illustrated above generates a potential of +1.10V. For the construction of a second galvanic cell (not shown), only one modification was made: the Cu electrode has double the mass of the Cu electrode in the first cell. Which of the following correctly compares the initial E° for the second cell to that of first cell at 298K, and why?
Answer:
The initial E° for the second cell is the same as for the first cell.
Explanation:
Because the overall chemical reaction that occurs in the cell does not change.
The first galvanic cell generated the cell potential of +1.10 V. The second galvanic cell generates the same cell potential because the overall cell reaction remains the same.
What is a galvanic cell?The galvanic cell is given as the electrochemical cell that generates the exchange of chemical and electrical energy.
The cell potential is described as the rate of reaction with the difference in the potential of the cathode and the anode.
The reduction and the oxidation potential are governed by the number of electrons transferred in the chemical reaction.
In the second galvanic cell, the number of electrons transferred from the copper electrode will be equivalent to the first electrode, as the chemical reaction is the same. Thus, the cell potential of the second galvanic cell will be the same as the first cell.
Learn more about galvanic cell, here:
https://brainly.com/question/25606438
En un tanque se halla CO₂ a 285K ocupando un volumen de 8 L. En esas condiciones determinamos el volumen que ocupa a 393K, considerando que la presión se mantiene constante
Answer:
11.0 L
Explanation:
Podemos resolver este problema usando la ley de Charles, que afirma que a presión constante:
T₁V₂=T₂V₁Donde el subíndice 1 indica las condiciones iniciales y el 2 las finales. En este caso:
T₁ = 285 KV₂ = ?T₂ = 393 KV₁ = 8 LIntroducimos los datos:
285 K * V₂ = 393 K * 8 LY calculamos V₂:
V₂ = 11.0 LIs this an alpha or beta decay?
When in history was the origin of Sci-Fi as
genre?
Why then?
Answer:
The term science fiction was popularized, if not invented, in the 1920s by one of the genre's principal advocates, the American publisher Hugo Gernsback. The Hugo Awards, given annually since 1953 by the World Science Fiction Society, are named after him.
Explanation:
are manifested as
instantaneous charge differences due
to molecular interactions.
Dipole-dipole
interactions
Dispersion
forces
Hydrogen
bonds
dipole: dipole interactions
- dispersion forces (London forces)
- hydrogen bonds
as the attractive forces between molecules becomes larger, it takes more energy to separate them
- as a result, vapor pressures, boiling points and melting points will be larger
occur between molecules that have a permanent dipole moment
- H-Cl----H-Cl
You are given a clear-water solution containing potassium nitrate. How could you determine whether the solution is unsaturated, saturated, or supersaturated?
Answer:
If it is unsaturated, we can dissolve some more amounts of potassium nitrate into it Explanation:
Question 2 of 10. What is Diffusion?
Answer:
diffusion: the movement of molecules in a solution from an area of
higher concentration to an area of lower concentration
Diffusion is the movement of particles from where there are more to where there are less. This movement occurs until particles are evenly spread out. While diffusion can be seen in all states of matter, it is most common in liquids and gases.