Given what we know, we can confirm that the interest rate necessary to reach $5500 in 7 years with a starting investment of $4000 on a yearly compounded interest, would be 4.7%.
Why is this the required interest rate?Since the question did not specify any extra data to be taken into account, such as:
Interest varianceMonthly or yearly contributionsInflation ratesand so on, we can assume that all of these values are null. Therefore, if we take $4000 and add 4.7%, and repeat that every time using our new totals, after 7 repetitions we are left with close to $5500, which is our goal.
Therefore, we can confirm that the interest rate necessary to reach $5500 in 7 years with a starting investment of $4000 on a yearly compounded interest, would be 4.7%.
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giving brainly if correct
Answer:
The corect answer would be C.
Explanation:
The flow rate set at a differentt time would be the correct measurement beecause wats and speed add up to your main answer.
What is the energy of a photon of infrared radiation with a frequency of 2. 53 × 1012 Hz? Planck’s constant is 6. 63 × 10–34 J • s. 1. 68 × 1023 J 1. 68 × 1047 J 1. 68 × 10–21 J 1. 68 × 10–45 J.
The energy of the IR photon is [tex]\rm 1.68\;\times\;10^{-21}[/tex] J. Thus, option C is correct.
The energy of the radiations propagating in the air with the velocity of [tex]\rm 3\;\times\;10^8[/tex] m/s is given by:
[tex]E=h\nu[/tex]
Where, h is Planck's constant, and [tex]\nu[/tex] is the frequency.
Computation for the energy of IR photonThe value of Planck's constant is given as, [tex]\rm 6.63\;\times\;10^{-34}\;J.s^-^1[/tex]
The frequency of the IR radiation is [tex]\rm 2.53\;\times\;10^1^2\;Hz[/tex]
Substitute the values for the energy of the photon
[tex]\rm E=6.63\;\times\;10^{-34}\;J.s^{-1}\;\times\;2.53\;\times\;10^{12}\;Hz\\ E=16.8\;\times\;10^{-22}\;J\\E=1.68\;\times\;10^{-21}\;J[/tex]
The energy of the IR photon is [tex]\rm 1.68\;\times\;10^{-21}[/tex] J. Thus, option C is correct.
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Calculate the mass of butane needed to produce 71.9 g of carbon dioxide.
1) balanced chemical equation
[tex]2\ C_{4}H_{10}_{(g)}\ +\ 13\ O_{2}_{(g)}\ ->\ 10\ H_{2}O_{(g)}\ +\ 8\ CO_{2}_{(g)}[/tex]
2) convert mass of CO₂ to moles
[tex]=71.9g\ CO_{2}\ x\ \frac{1\ mol\ CO_{2}}{44.01g\ CO_{2}} \\\\=1.633719609[/tex]
3) multiply by molar ratio
[tex]=1.633719609\ mol\ CO_{2}\ x\ \frac{2\ mol\ C_{4}H_{10}}{8\ mol\ CO_{2}}\\\\=0.4084299023[/tex]
4) convert moles of C₄H₁₀ to mass
[tex]=0.4084299023\ mol\ C_{4}H_{10}\ x\ \frac{58.14g\ C_{4}H_{10}}{1\ mol\ C_{4}H_{10}}\\\\=23.74611452[/tex]
= 23.7 grams of C₄H₁₀ is needed to produce 71.9 grams of CO₂
Name two ways that carbon(usually in the dorm of C02) enters the atmosphere
Answer:
When animals breathe or decompose (decay), carbonate rocks weather, forest fires occur, and volcanoes erupt, carbon dioxide is released into the atmosphere naturally. Carbon dioxide is also released into the atmosphere as a result of human activities such as fossil fuel combustion and forest fires.
How many moles of hydrogen are in 3. 06 × 10⁻³ g of glycine , c₂h₅no₂?.
Answer:
n = 6.06 x [tex]10^{-4}[/tex] mol
Explanation:
n =?
m = 3.06 x 10-³ g
M (H5) = 5 x 1.01 (Since we only want hydrogen)
Atomic mass of C = 12.01
Atomic mass of H is 1,01, etc.
Having this data, we can use the Molar mass formula and change it so we can know the quantity of matter (n) in moles, and we just replace it.
M = [tex]\frac{m}{n}[/tex] ⇔ n = [tex]\frac{m}{M}[/tex] ⇔ n = [tex]\frac{3.06 x 10^{-3} }{5,05}[/tex] ⇔ n = 6.06 x [tex]10^{-4}[/tex] mol
Note: The numbers I've used may be different from yours, by a small difference. I don't know if it's the case, but hope it helped.
write about the chemicals which can bring the permanent hardness in water
Answer:
Permanent hardness (mineral content) is generally difficult to remove by boiling. If this occurs, it is usually caused by the presence of calcium sulfate/calcium chloride and/or magnesium sulfate/magnesium chloride in the water, which do not precipitate out as the temperature increases
Explanation:
plz mark me brainlist
The industrial solvent carbon disulfide (CS2) is produced when coke (C) and sulfur dioxide (SO2) react. If 8.00 g of SO2 reacts, how many moles of CS2 are formed?
Answer:
0.0624 mol
Explanation:
Trust me i know :)
The statement, that describes moles of CS2 are formed in the reaction is "0.0624 mol."
What is reaction?In a chemical reaction, one or several substances also referred to as reactants are changed into one or several additional compounds are recognized as products.
What is a mole?A mole is the proportion of chemical substance which comprises the number of entities such as atoms, molecules, ions etc. In order to determine the moles, divide the given mass of the substance value by its molar mass to convert grams into moles.
Gram to mole conversion factor,
[tex]= Grams\;*\;\frac{1\;mol}{gram}= 8.00\;g\;*\;\frac{1\;mol}{64.066 g}\\= 0.1248\;mol[/tex]
The balanced chemical equation comes out to be, 5C + 2SO → CS₂ + 4CO
Using the above equation, moles of carbon disulfide is calculated as follows,
[tex]= 0.1248\;mol\;of\;SO2\;*\;\frac{1\;mol\;CS2}{2\;mol\;SO2} \\\\= 0.0624\;mol\;CS2[/tex]
Hence the correct answer is 0.0624 mol.
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Please help I have no idea what this wants me to do :(
Make 250 mL of a 2.570 M solution of CoCl2. Dilute the solution from the first part to make 150 mL of a ___ M solution. How many mL of the first solution do you need?
Answer:
4.283M
Explanation:
Hi!
We are given a certain amount of CoCl2, and we are asked to make a smaller portion of it but with a stronger concentration. Dilution is a process where we use this equation: [tex]M_1V_1=M_2V_2[/tex] to find the unknown variable.
Think of it this way:
You put a powdered water flavor enhancer into your bottle. You put 5 drops of it, but it evenly distributes around the bottle so it tastes fine.
Now, you put it in a very small, miniscule cup. You have only a certain amount of water and 5 drops of water, but the flavor is so strong since there is less of the water. This is known as the concentration. Volume is just the water+flavor booster.
Let's convert everything to liters since the volume should be in units of liters.
250mL=0.250L
0.150mL=0.150L
Now, let's plug it in. The first two numbers go in the left side of the equation, and we do not know the concentration of the second so we will substitute a variable.
0.250(2.570)=x(0.150) Isolate X.
4.283=x
x=molarity of the solution
The second question asks how many mL of the first solution would you need....since the relationship of MV should be consistent, it should be all of the solution needed.
D) (55 g)(4.18 J/g•K)(373 K)
14. A 17.0-gram sample of H2O(l) at 4.0°C absorbs
2558 joules of heat. What is the final
temperature of the H2O(l) sample?
A) 5.0°C
B) 40.0°C
C) 36.0°C
D) 50.0°C
Please help
Why do elements in the same group on the periodic table tend to have similar physical and chemical properties?.
Answer:
In chemistry, a group is a vertical column in the periodic table of the chemical elements. ... Each element within a group has similar physical or chemical properties because of its atom's outermost electron shell (most chemical properties are dominated by the orbital location of the outermost electron).
A solution containing a nonvolatile solute will have a(n) vapor pressure than the pure solvent. The change in the vapor pressure is proportional to the fraction of the solute in the solution.
A solution containing a nonvolatile solute will have a lower vapor pressure than the pure solvent and the change in vapor pressure is directly proportional to the fraction of the solute in the solution.
What happens to a liquid when a non-volatile solute is dissolved in it?The addition of a nonvolatile solute to a liquid solvent results in a lowering of the vapor pressure of the solvent.
The change in the vapor pressure is directly proportional to the mole fraction of the solute in the solution.
Therefore, a solution containing a nonvolatile solute will have a lower vapor pressure than the pure solvent and the change in vapor pressure is directly proportional to the fraction of the solute in the solution.
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Describe the relationship between the number of carbon, hydrogen, and oxygen atoms in carbohydrates.
How many moles of magnesium are in 3. 01 x 10^22 atoms of magnesium.
Answer:
Explanation:
1 mol of anything is 6.02 * 10^23 atoms (in this case)
x mol of 3.01 * 10^22
Set up the proportion
1/x = 6.02*10^23 / 3.01 * 10^22 Cross multiply
x*6.02 * 10^23 = 1 * 3.01 * 10^22 Divide by 6.02*10^23
x = 3.01 * 10^22 / 6.02*10^23
x = 1/(2 * 10)
x = 1/20 mol
x = 0.05 mol
This circuit shows a battery and wires connected to a lightbulb. The chemical energy in the battery is converted to:
A. radiant energy then electric energy
B. electric energy then chemical energy C.belectrical energy then radiant energy
D. radiant energy then mechanical energy
Answer:
B. electric energy then chemical energy
Explanation:
how many atoms are in 0.68 moles of strontium
Answer: 0.011412919424789.
Explanation:
u might have to simplify
Which type of energy is stored within an object and is partially determined by the object’s position?
electrical energy
ionic energy
kinetic energy
potential energy
Answer:
D. Potential energy
Explanation:
Answer:
Which type of energy is stored within an object and is partially determined by the object’s position?
electrical energy
ionic energy
kinetic energy
potential energy
D. potential energy
The Mass of the paper before being bumed is 50% how much mass should there be after
the paper has burned?
0%
Explanation:
IF YOU BURNED THE PAPER THERE WILL BE ONLY ASHES
What is the number of moles in 3.2x10^24 atoms of nitrogen?
A. 1.9 moles
B. 5.3 moles
C.9.5 moles
D. 19.2 moles
Answer:
Option B
Explanation:
Use the Avogadro constant of 6.02 x 10^23
For Option A
1.9 moles x (6.02 x 10^23) = 1.1438 x 10^24
For Option B
5.3 moles x (6.02 x 10^23) = 3.1906 x 10^24
For Option C
9.5 moles x (6.02 x 10^23) = 5.719 x 10^24
For Option D
19.2 moles x (6.02 x 10^23) = 1.1558 x 10^25
The closest to 3.2 x 10^24 is Option B.
Gold has a specific gravity of almost 20. A 5-gallon bucket of water weighs 40 pounds. How much would a 5-gallon bucket of gold weigh?.
Answer:
800 pounds
Explanation:
your welcome
Gold has a specific gravity of almost 20. A 5-gallon bucket of water weighs 40 pounds. A 5-gallon bucket of gold would weigh around 800 pounds.
To determine how much a 5-gallon bucket of gold would weigh, we need to consider the specific gravity of gold. Specific gravity is a measure of the density of a substance compared to the density of water. Gold has a specific gravity of almost 20, which means it is approximately 20 times denser than water.
We know that a 5-gallon bucket of water weighs 40 pounds. Since gold is 20 times denser than water, a 5-gallon bucket of gold would weigh 20 times more than a 5-gallon bucket of water. Therefore, the weight of a 5-gallon bucket of gold can be calculated as follows:
40 pounds x 20 = 800 poundsBased on this analysis, a 5-gallon bucket of gold would weigh approximately 800 pounds.
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A weak acid, ha, has a p������a of 4. 524. If a solution of this acid has a ph of 4. 799 , what percentage of the acid is not ionized? assume all h in the solution came from the ionization of ha.
Answer:
highly endothermic
Explanation:
If the molar mass of a compound is 78. 12 g and the empirical formula is ch, what is the value of the integer that relates the empirical formula to the molecular formula?.
Answer:
C6H6
Explanation:
The empirical formula, CH, has a unit mass of 13 (12+1). 78/13 = 6
There are 6 units of CH in the intact compound. The molecular formula must be C6H6.
C: 6 * 12 = 72
H: 6 * 1 = 6
Total = 78
Suppose you were given a substance and asked to determine whether it was a plasma. What characteristics would be true of the substance for it to be a plasma? Check all that apply. The particles in the substance would collide more often. The particles in the substance would have high kinetic energy. The particles in the substance would be close to each other. The substance would have a fixed shape and volume. The substance would be composed of ionized particles.
Statement 1, 2, and 5 are true about plasma.
Plasma is a conducting medium that can conduct charge when the atoms are ionized and is also referred to as the fourth state of matter.
What are the characteristics of plasma?Plasma has particles whose kinetic energy is high as they move too quickly because they are not too closely located rather are far apart.
The particles of the plasma located are far apart and collide more frequently compared to other states of the matter. They have both positive and negative charges.
The particles has a charge but has no fixed volume. The charged particles of the plasma make them electrically conductors. It also shows electromagnetism.
Therefore, statements 1, 2, and 5 are true about plasma.
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Answer:
1, 2, and 5
Explanation:
The benedict's test indicates a positive result when the solution turns.
what mass of propane could burn in 48.0 g of oxygen
Why does water boil at 100°C and methane boil at -161°C
Please help me
Explanation:
The main difference in boiling points are due to intermolecular attractions. With water, it is a polar molecule, has hydrogen bonding, and exhibits london forces. All of these combined, make H2O bonds very strong, which means more energy is required to transition from one state to another, leading to higher boiling points.
On the other hand, methane is a non-polar molecule that only exhibits very weak london forces. It being a non-polar molecule, means its bonds are very weak, which means less energy is required to boil methane.
Also, the Celsius system was made so that water would be a reference. This is a reason for why its boiling point temperature is convenient
Please help me answer the questions I need help
Answer:
atomic radius decreased from left to right
electrons in an atom increases
causing the atom to shrink
atom radius increased down a group
additional energy level is added
What are the two most common ions found in seawater.
In the first step in the life cycle of a
star, it is called a:
A physical change is ...
O properties of the material do not change, but the identity of matter does change.
O properties of the material and identity of matter both change.
O properties of the material change, but the identity of matter does not change.
Answer:
the answer is c I just took the test
True or false and object can not be accelerating if it has constant speed
