Answer:
[tex]c=50\frac{m}{s}[/tex]
Explanation:
Hello!
In this case, given the relationship between velocity, wavelength and frequency:
[tex]c=\lambda *f[/tex]
By plugging in the given wavelength and frequency, we obtain the following speed:
[tex]c=15m*0.3\frac{1}{s}\\\\c=50\frac{m}{s}[/tex]
Best regards!
Could a child inherit a dominant trait if neither of her parents express the dominant trait? show the cross
Answer:
yes it does
Explanation:
I searched it up
What mass of Fe(OH)3 will be obtained when 100. mL of 0.240 M FeCl3 is mixed with 200. mL of 0.182 M NaOH?
Answer:
648.68 mg
Explanation:
The reaction that takes place is:
FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaClFirst we calculate how many moles of each reactant were added, using the given volumes and concentrations:
FeCl₃ ⇒ 100 mL * 0.240 M = 24 mmol FeCl₃NaOH ⇒ 100 mL * 0.182 M = 18.2 mmol NaOH24 mmol of FeCl₃ would react completely with (24 * 3) 72 mmol of NaOH. There are not as many NaOH mmoles, so NaOH is the limiting reactant.
Now we calculate how many moles of Fe(OH)₃ are formed, using the moles of the limiting reactant:
18.2 mmol NaOH * [tex]\frac{1mmolFe(OH)_3}{3mmolNaOH}[/tex] = 6.07 mmol Fe(OH)₃Finally we convert 6.07 mmol Fe(OH)₃ to grams, using its molar mass:
6.07 mmol Fe(OH)₃ * 106.867 mg/mmol = 648.68 mgThe 129.6 g mass of Fe(OH)₃ will be obtained.
How we calculate mass or weight from moles?Weight or mass of any substance can be calculated from mole as:
n = W/M.
Given chemical reaction is:
FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaCl
According to the question:
Concentration of FeCl₃ = 0.240 M
Volume of FeCl₃ = 100 mL
Concentration of NaOH = 0.182 M
Volume of NaOH = 200 mL
Moles can be calculated by using the formula M = n/V mole/L 0r M = n×1000/V g/mL,
Moles of FeCl₃ = 0.240 × 100 = 0.024 mole
Moles of NaOH = 0.182 × 200 = 3.64 mole
From the stoichiometry of the reaction, it is clear that 3 mole of NaOH i.e. 109.2 moles of NaOH reacts with 1 mole of FeCl₃ to form product. So here NaOH is the limiting agent and responsible for the formation of product. Now we calculate how many moles of Fe(OH)₃ are formed, using the moles of the limiting reactant as follow:
Moles of Fe(OH)₃ = 1/3 × ( 3.64) = 1.21 mole
Finally we convert 12.1 mole Fe(OH)₃ to grams, using its molar mass:
W = 1.21 mole × 106.87 g/mole = 129.6 g
Hence, 129.6 gram of Fe(OH)₃ will be obtained.
To know more about moles, visit the below link:
https://brainly.com/question/14464650
write an apology letter to your principal telling him why you were not in the mathematics competition.in 4000 words
How many atoms are in 1.4 moles of H3PO4?
8.4 X 10^23 atoms
8.9 X 10^23 atoms
8.4 X 10^23 grams
8.4 X 10^23 moles
8.4 × 10²³ atoms H₃PO₄
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
MolesAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Stoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
[Given] 1.4 moles H₃PO₄
[Solve] atoms H₃PO₄
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
[DA] Set up: [tex]\displaystyle 1.4 \ mol \ H_3PO_4(\frac{6.022 \cdot 10^{23} \ atoms \ H_3PO_4}{1 \ mol \ H_3PO_4})[/tex][DA] Multiply [Cancel out units]: [tex]\displaystyle 8.4308 \cdot 10^{23} \ atoms \ H_3PO_4[/tex]Step 4: Check
Follow sig fig rules and round. We are given 2 sig figs.
8.4308 × 10²³ atoms H₃PO₄ ≈ 8.4 × 10²³ atoms H₃PO₄
Write down the names of the elements
Answer:
Carbon and hydrogen
Explanation:
C = Carbon
H = Hydrogen
How many grams are in 6.60 moles of ZnO?
Answer:
6.60 moles of ZnO have 537,108 g.
Explanation:
(55 points) Please help me with my homework please please help me thanks so much
Explanation:
the most important observations is the conversion of electrical energy into light energy which performs the function of a lamp
in addition to this there is considerable amount of energy loss in form of heat energy when the electrical lamp is there is production of a result of this is not converted into light energy
Name 2 diatomic molecules.
Why does salt give off a colored flame when it is burned? What does the green color barium burns
Answer:
The sodium ion has a stronger affinity for the electron, so more energy is required to move the electron. ... The anion can affect the result of the flame test. For example, a copper(II) compound with a non-halide produces a green flame, while a copper(II) halide yields a blue-green flame
Explanation:
How is conservation of mass illustrated in this simulation? Explain your answer.
Answer:
Do part by part
Explanation:
which part of the red blood cells can you find hemoglobin
Answer:
The cytoplasm of erythrocytes is rich in hemoglobin, an iron-containing biomolecule that can bind oxygen and is responsible for the red color of the cells and the blood. Each human red blood cell contains approximately 270 million of these hemoglobin molecules.
Explanation:
hope this helps(;
What number will go in the _?_ below to balance the equation?
3Gr3V2 + O3 --> 3GrO + __?__V
Question 1 options:
A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
G. 9
Answer:
Option F 6 will be the answer.
What are the reactants in the following reaction?
2FeS + 302 → 2FeO + 2502
iron (II) sulfide and oxygen
iron (II) sulfide and iron (II) oxide
oxygen and sulfur dioxide
iron (11) oxide and sulfur dioxide
Answer:
Iron (II) sulfide and oxygen
Choose all the answers that apply.
Which of the following increases erosion?
careless farming
crop rotation
leaving fields unplanted
clearing forests
contour plowing
Answer:
1, 3, and 5
Further Information:
Careless farming - increases erosion
Crop rotation - does not increase erosion
Leaving fields unplanted- increases erosion
Clearing forests - does not increase erosion
Contour plowing - increases erosion
Hope this helps and brainliest would be greatly appreciated!!
Freshwater biomes contain less salt than ocean biomes.
true or false
true...as it gives home to many of the organisms
Which of the following organisms carry out photosynthesis?
what is organic chemistry?
Answer:
Organic chemistry is the scientific study of the structure, properties, compositions, reactions and synthesis of organic compounds that by definition contains carbon.The organic compounds are molecules composed of carbon and hydrogen and it may contain any number of other elements.
Maybe this was your answer for your question.
Given the following equation formats, which form matches a single replacement
reaction?
O AB + CD → AD + CB
O A+B → AB
O A + BC → AC + B
O AB → A+B
Answer:
The answer is c. A + BC → AC + B
10-14 is smaller than 107
Answer:
it is true because if you subtract 10 - 14 you will get -4 so it is less than 107.
Explanation:
Hope this helps!
Which of the following statements about maintaining a fitness program is ture?
Answer:
im sorry but you havent posted the pic
Explanation:
what is the formula for magnesium combining with chlorine
Answer:
The formula is MgCl2
Answer:
the formula will be magnesium chloride
When magnesium reacts with oxygen, magnesium atoms lose electrons.
What happens to magnesium in this reaction?
A. It is reduced.
B. It is oxidized.
C. It is decomposed.
D. It undergoes redox.
Answer:
B : it is oxidized .
Explanation:
What is the [SO32-) in the 0.080 M H2SO3 .080 M Solution?
Answer:
0.080 M
Explanation:
From the question given above, the following data were obtained:
Concentration of H₂SO₃ = 0.080 M
Concentration of SO₃²¯ =…?
The concentration of SO₃²¯, can be obtained as follow:
H₂SO₃ (aq) <==> 2H⁺ (aq) + SO₃²¯ (aq)
From the balanced equation for above,
1 mole of H₂SO₃ produced 1 mole of SO₃²¯.
Therefore, 0.080 M H₂SO₃ will also produce 0.080 M SO₃²¯.
Thus, the concentration of SO₃²¯ is 0.080 M
Consider this reaction mechanism:
Step 1: C4H9Br C4H9+ + Br- (slow)
Step 2: C4H9+ + OH- C4H9OH (fast)
Which rate law is consistent with the mechanism?
When a metal reacts with oxygen gas what is the product formed
Answer:
Metal + Oxygen -> Metal Oxide
Explanation:
It's pretty self-explanatory. However, let me show you an example:
Iron + Oxygen -> Iron Oxide
Iron rusts. When iron rusts, it comes in contact with air to form Iron Oxide, which is rust itself.
rain washing away soil from a hillside
Answer:
deposition
Explanation:
Brenda creates an animation that tells the story of a metal from when it is mined as an ore to when it is used as a shiny, protective coating on a car’s iron bumper.
Which two terms will Brenda most likely use in her animation, and in what order?
“electrometallurgy” followed by “electroplating”
“electrometallurgy” followed by “anodization”
“anodization” followed by “electroplating”
“electroplating” followed by “electrometallurgy”
Answer: A. “electrometallurgy” followed by “electroplating”
Explanation:
Right on edge :)
Answer:
It would be A. “electrometallurgy” followed by “electroplating”
Explanation:
Electrometallurgy is the reduction of metals from compounds to obtain the pure form of metal using electrolysis. In other words, a process in which ores are converted into the pure form of that certain metal through electrolysis.
Electroplating is a process of depositing a thin layer of metal onto an object in an electrolytic cell for strengthening or decorative purposes.
Also in case you are wondering, anodization is a process that makes the surface of metals resistant to corrosion, making the answers containing this process incorrect.
Hope this helps!
I would appreciate brainliest :)
A student finds the mass of an empty 50-mL beaker to be 36.52 g. She then uses a 25.0- mL volumetric pipet to transfer a sample of an organic liquid to the beaker. The beaker and its contents now have a mass of 53.25 g. what is the density of the liquid?
Answer:
density = 0.669 but see below.
Explanation:
Mass of Beaker and the liquid = 53.25
Mass of just the beaker = 36.52 Subtract
Mass of the liquid 16.73
Density = mass / volume
mass = 16.73
volume = 25.0 mL
You have to assume that the pipette was filled right to the top.
Density = 16.73 / 25.0 = 0.6692 grams / mL
Since this only has 3 places of accuracy, the answer should be 0.669
What energy is using the telephone?
1.electrical
2.sound
3.thermal
4.light
5.mechanical
Answer:
electrical
Explanation:
i kinda guessed.
Answer:
electrical energy is changed into sound energy
2NH3(g) <--> N2(g)+3H2(g)
Which is most likely the effect to the forward reaction if there is an increase in pressure of the system?
The reactant surface area increases.
The reaction rate decreases.
The reaction is not affected at all.
The reaction stops completely.
Answer:
B. The reaction rate decreases.
Explanation: