After series of conversion from one unit to another, the number of gallons was found to be 12 litres
Density, Mass and Volume
Given Data
Density of Sulfuric acid = 1.84 g/cm3Mass of Sulfuric acid = 184.33 PoundsConversion from pounds to Gram
1 kg ---------2.204 lb
x kg ---------184.33 lb
x = 184.33/2.204
x = 83.634 kg
hence the mass in gram = 83.634*1000
mass in gram = 83634 g
Now let us find the volume
We know that density = mass/volume
volume = mass/density
volume = 83634/1.84
volume = 45453.26 cm^3
Convert cm^3 to litres
Volume in litres = 45453.26 /1000
Volume in litres = 45.45 Litres
Convert from Litres to Gallons
1 gallon = 3.79 L
x gallons = 45.45 L
x = 45.45/3.79
x gallons = 11.99 L
Approx = 12 Litres
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Calculate the mass, in grams, of 532.0 atoms of cadmium, Cd (1 mol of Cd has a mass of 112.41 g).
The mass, in grams, of 532.0 atoms of cadmium is 9.93 × 10⁻²⁰ g
StoichiometryFrom the question, we are to determine the mass of the given atoms of cadmium
First, we will calculate the number of moles of cadmium present
Using the formula,
[tex]Number\ of\ moles = \frac{Number\ of\ atoms}{Avogadro's\ constant}[/tex]
Then,
Number of moles of Cd present = [tex]\frac{532.0}{6.022 \times 10^{23} }[/tex]
Number of moles of Cd present = 8.83427 × 10⁻²² moles
From the given information,
1 mole of Cd has a mass of 112.41 g
Therefore,
8.83427 × 10⁻²² moles will have a mass of 8.83427 × 10⁻²² × 112.41 g
8.83427 × 10⁻²² × 112.41 = 9.9306 × 10⁻²⁰ g
≅ 9.93 × 10⁻²⁰ g
Hence, the mass, in grams, of 532.0 atoms of cadmium is 9.93 × 10⁻²⁰ g
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Describe the composition of humus and why it is an effective organic fertilizer.
Answer:
In classical soil science, humus is the fraction of soil organic matter that is amorphous and without the "cellular cake structure characteristic of plants
Explanation:
anyways were r we going 2 talk?
and wut did i miss?
A solution of a weak acid was tested with the following indicators and the colors noted: Methyl Violet - violet Thymol Blue - yellow Methyl Yellow - yellow Congo Red - orange Bromcresol green - green What is the approximate pH of the solution
pH ranges depending on the solution, for a solution with weak acid pH will be between 4.0-7.0.
What is pH?pH is helps to determine if a solution is acidic or basic in nature.
A pH meter is the instrument that can be used for the measurements.
Methyl orange is used when titrating a strong acid against a weak base.
Therefore, the pH of the solution which is a weak acid will be between 4.0-7.0.
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Which of the following is true about daughter cells?
Which term describes energy stored in the bonds between atoms?
A) Nuclear B)Chemical C)Thermal D) Sound Energy
Answer:
B.) Chemical
Explanation:
The energy stored in the bonds between atoms is referred to as chemical energy. I hope this helps! ^-^
The abbreviated electron configuration for the lead (IV) ion is?
Answer: I THINK THIS IS THE ONE...
Explanation: This means “the configuration of xenon plus 6s2 4f14 5d10 6p2.”
HEY I NEED A ANSWER RIGHT NOW IT'S MISSING AND MY TEACHER ARE GRADING THEM NOW YOU WILL BE MARKED BRAINIEST
Answer:
56.6 g Fe2O3
Explanation:
Balanced equation is given by
[tex]\\ \rm\Rrightarrow 4Fe+3O_2\longrightarrow 2Fe_2O_3[/tex]
On both sides
Fe=4O=6Hence balanced
Now
3mols of O_2 produces 2 mol Fe_2O_31 mol O_2 produces 2/3=0.6mol Fe_2O_3Moles of O_2:-
17/32= 0.5molMoles of Fe_2O_3;
0.5(0.6)=0.3molMass of Fe_2O_3:-
Moles (Molar mass)159.7(0.3)=47.91gwhat is the electron configuration for S-
Answer:
The Electron Configuration for Sulfur(S)= 1s^2 2s^2 2p^6 3s^2 3p^4
Explanation:
Use the sheet attached to help with a future question. (Hint: Follow the red lines). The atomic number will be equal to the number of powers raised.
Determine the number of moles of H in each sample.
1. 4.56 mol H2O
2. 7.86 mol NH3
3. 0.113 mol N2H4
4. 36.0 mol C10H22
Explanation:
I answered your question in a photo sent
Which is a process that converts sunlight energy into a compound that stores chemical energy?
phototropism
phototropism
photosynthesis
photosynthesis
respiration
respiration
pollination
pollination
Research more Respiration
3. Calculate the average atomic mass for the sample of atoms shown below.
Cu-63
Cu-65
A. 63.50 u
B. 63.75 u
C. 64.25 u
D. 64.50 u
Answer:B:63.75
Explanation:(5/8 x 63)+(3/8 x 65)=(0.625 x 63)+(0.375 x 65)=63.75
3. Would you expect your experimental results would change if a different gas, such as CO2, were used instead of air? Explain your answer.
The experimental results would change if a different gas, such as CO₂, were used instead of air.
What is Air?This comprises of gases that form the atmosphere and they include:
78.08% nitrogen20.95% oxygen0.93% argon0.04% carbon dioxide, and small amounts of other gases.Due to the presence of other gases in air, there would be a change in experimental results.
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Construct a model to show the movement of matter and energy from plants into other organisms. Show how mass and energy are conserved before and after each interaction. For example, the beginning substances before an interaction equal the ending substances, and vice versa.
I listed a student example I need something like the example but for photosynthesis asap I will give 100 points to whoever has the correct answer
Plants obtain energy from the sun during photosynthesis and pass it along the food chain.
What is a model?A model is a representation of reality. We use models to understand what the real situation of things is like.
Let us recall that plants are the producers in the ecosystem. Energy flow from plants to animals. Plants obtain energy via the reaction 6CO2 + 6H2O --->C6H12O6 + ATP. This energy is passed along the food chain as organisms feed on each other.
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You are going to standardize your sodium hydroxide by titrating with potassium hydrogen phthalate. As an example, you dissolve 0.3365 g of potassium hydrogen phthalate, otherwise known as KHP (KHC8H4O4) in water in a 250.0 mL Erlenmeyer flask and then add phenolphthalein indicator. You then titrate with your sodium hydroxide solution, which is in a buret, and you determine that the equivalence point is at 12.44 mL of your sodium hydroxide solution. Determine the molarity of your sodium hydroxide solution. What color will the solution of potassium hydrogen phthalate turn to determine when the equivalence point has been reached
Answer:
0.13 M
Explanation:
The reaction equation is;
NaOH(aq) + KHC8H4O4(aq) ------> KNaC8H4O4(aq) + H2O(l)
Molar mass of KHP = 204.22 g/mol
Amount of KHP= mass/ molar mass = 0.3365 g/204.22 g/mol = 1.65 × 10^-3 moles
n= CV
Where;
C= concentration
V= volume in dm^3
n= number of moles
C= n/V = 1.65 × 10^-3 moles × 1000/250 = 6.6 × 10^-3 M
If 1 mole of KHP reacts with 1 mole of NaOH
1.65 × 10^-3 moles of KHP will react with 1.65 × 10^-3 moles of NaOH
From
n= CV
We have that only 12.44 ml of NaOH reacted
C= n/V = 1.65 × 10^-3 moles × 1000/12.44
C= 0.13 M
At the equivalence point, the KHP solution turned light pink.
The following questions pertain to a 0.50 M solution of HOCl at 25℃. pKa = 7.46 at 25℃. a. Find the concentration of all species present in the solution at equilibrium. b. Find the pH of the solution. c. Identify the strongest base in this system.
HELP ASAP!!!!!
Based on what you learned from the Reproduction and Energy article, why do you think this happens? You can review the article again (located in your Digital Resources) to be more sure about your response.
Reproduction is an energy requiring process as new organisms are produced from parents.
What is reproduction?Reproduction is the process by which living organisms produce young ones of their own kind.
Reproduction can either be by;
se-xual reproduction orase_xual reproductionReproduction is an energy consuming process.
Energy is required for cell division and for building up new news in the new organism.
Therefore, during reproduction, energy is required.
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How many electrons do two ethylene monomers () share to form a covalent bond?
Two electrons are shared between each hydrogen atom and the carbon atom bonded to it, and four electrons are shared between the carbon atoms.
Its 2
Answer:
2 would be the amount to form a covalent bond
If you can’t see it, how do you know it’s there?
Answer:
Our 4 Senses
Explanation:
You see, even though we see cant see something, that doesn't mean that it isn't there, for example, bacteria, the wind, and particles. We cant see any of them, at least with just the human eye, but we still are aware that all those things are there.
Our 4 Senses can help us identify things we cant see, lets start off with our sense of "smell"
Lets say there is a amazing new chef in town who just made the best load of bread, your not sure where her/his restaurant is but you can smell that French bread all the way from your house.
You see, you know that it is there, but you cant see it! All our senses help us identify this, so just to prove my point a bit more, lets try one more sense.
Lets finish the night off with one of our other sense "Hearing"
Lets pretend there is a beautiful bird chirming, you look outside your window but you cant see the little bird, you know its there, but you cant see it.
What I'm trying to say is, even though we cant see something, it doesn't mean it isn't there, and our senses help us!
I hope this helped! If you dont understand something or would like more of an explanation, feel free to contact me! :D
If a car with a mass of 4000 kg is accelerating at a rate of 2 ms and hits a tree what force does it have?
Answer:
8000
Explanation:
it wil be twice the amount of the cars weight
A. Calculate the molarity of solution of "sodium sulfate" that contains 5.2 grams sodiums sulfate diluted to 500mL.
B. How many moles of sodium are in the solution
A. The molarity of solution containing 5.2 g of sodium sulphate is 0.0732 M
B. The number of mole of sodium in the solution is 0.0732 mole
How to determine the mole of sodium sulphate Na₂SO₄Mass of Na₂SO₄ = 5.2 gMolar mass of Na₂SO₄ = (23×2) + 32 + (16×4) = 142 g/mol Mole of Na₂SO₄ =?Mole = mass / molar mass
Mole of Na₂SO₄ = 5.2 / 142
Mole of Na₂SO₄ = 0.0366 mole
A. How to determine the molarity Mole of Na₂SO₄ = 0.0366 mole Volume = 500 mL = 500 / 1000 = 0.5 L Molarity =?Molarity = mole / Volume
Molarity = 0.0366 / 0.5
Molarity = 0.0732 M
B. How to determine the mole of sodium (Na)1 mole of Na₂SO₄ contains 2 moles of Na.
Therefore,
0.0366 mole of Na₂SO₄ will contain = 0.0366 × 2 = 0.0732 mole of Na
Thus, 0.0732 mole of Na is present in the solution.
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What are the main reasons we cannot power the earth with 100% of renewable energy? Explain what can be done, or needs to be done to eventually achieve this goal.
Help me please lol TwT
Answer:
the number one reason we cannot power the Earth with 100% renewable energy is because our dependence on nonrenewable energy(fossil fuels)...,but with technological advances in solar energy and the latest innovation in biofuels I wouldn't be surprised if we (humans) are powering our electronics with simply the steps we take in our daily routine.
HELP I don't understand anything !!!!!
Answer:
-I dont have a calculator on me but I can explain to you how to do it and you can put it in your calculator
Explanation:
-First you have to balance the equation because its not balanced
4Na+2H2O —-> 4NaOH
-After you balance it you have to add up the grams of H2 gas,
-The mass of each element is measured in grams
- You find how many grams each element it by looking at the periodic table and looking at the number at the bottom, thats called the mass
- Afterward if the element mass you are looking for has a small number as its subscript, that means there is more than one, so you must add them together to get the correct amount of grams it has
1+1=2grams
-After that, you take that and convert it to moles
2grams x 1mole/(6.02^23)grams = (unknown) moles
-And finally you convert that answer from moles to liters
(Unknown) moles x 22.4 Liters / 1 mole = FINAL ANSWER
I hope this was helpful, I tried to break it down the best I could for you <3
Producer gas has the following composition by volume: O2 . The oxygen fed from the air and the producer gas is 20% in excess of 68.0 1.2507 2CO + O2 2CO2 The oxygen is from the air whose volumetric composition is assumed to be 80% N2 % Density, kg/m3 The gas is burned with oxygen according to the following equation: CO2 3.5 1.9768 the amount required for complete combustion. The combustion is 98% complete. N2 CO 28.0 1.2501 0.5 1.4289 and 20% O2 Carry out total material balance for this process based on 100kg of gas burned.
Answer:
ANSWER: (a) 6.93 m3 (b) 54.286 m3 (c) 20.45% CO2, 1.3496 02, 78.21% N2
Explanation:
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A rock is a naturally occuring solid mixture of one or more of the following: *
A: minerals, lava, and water
B: minerals, limestone, basalt, and granite
C: minerals, sediment, crystals, and organic matter
D: minerals, clastic, felsic and mafic
Answer:
A
Explanation:
Because minerals and lava
Thomas performed an experiment to measure the temperature of water as he heated it on a hotplate. At the end of his experiment, he plotted the results as shown in the graph below.
Pls I need this
Answer: I think it's C.
Explanation: I can't explain
Answer:
I thought A not C
Explanation:
But ill double check
An atom with the same number of protons and electrons has charge of
Answer:
Explanation:
0
All the charges of the protons are cancelled out by all the charges on the electrons.
Dinitrogen oxide has _____.
Answer:
Nitrogen is the answer my good sir.
Explanation:
What is one thing about science you love?
Answer:
science tells us that our collective consciousness is rare, I am inspired to love deeper and connect with others.
A reaction of 58.1 g of Na and 54.9 g of Br2 yields 67.8 g of NaBr . What is the percent yield?
The part of the screen where you write or place code is called the _____.
Answer:
screenwriting
Explanation:
Answer:
the editor <3
Explanation: