Answers
Answer:
Empirical formula is C₅H₁₂O
Molecular formula = C₅H₁₂O
Explanation:
Given data:
Percentage of hydrogen =13.75%
Percentage of carbon = 68.11%
Percentage of oxygen = 18.15%
Empirical formula = ?
Solution:
Number of gram atoms of H = 13.75 / 1.01 = 13.6
Number of gram atoms of O = 18.15 / 16 = 1.13
Number of gram atoms of C = 68.11 / 12 = 5.68
Atomic ratio:
C : H : O
5.68/1.13 : 13.6/1.13 : 1.13/1.13
5 : 12 : 1
C : H : O = 5 : 12 : 1
Empirical formula is C₅H₁₂O.
Molecular formula:
Molecular formula = n (empirical formula)
n = molar mass of compound / empirical formula mass
Empirical formula mass :
5×12 + 12×1.01 + 16×1 = 88.12 g/mol
n = 88.17/ 88.12
n = 1
Molecular formula = n (empirical formula)
Molecular formula = 1 (C₅H₁₂O)
Molecular formula = C₅H₁₂O
Related Questions
Need help fast please!
Find the mass of 4.56 mols of LaPO4
Answers
Answer:
Mass = 1080.26 g
Explanation:
Given data:
Number of moles of LaPO₄ = 4.56mol
Mass in gram = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of LaPO₄ = 236.9 g/mol
by putting values,
4.56 mol = mass/ 236.9 g/mol
Mass = 4.56 mol × 236.9 g/mol
Mass = 1080.26 g
Convert 12.5 km/L to mi/gal.
Answers
Answer:
29.40182
Explanation:
Which statement describes clean air as a natural source
Answers
Answer:
as I guess it is last statement
Which of the following have metallic bonding? 1. Magnesium chloride 2. Hydrogen chloride. 3. Magnesium. 4. Chlorine
Answers
Explanation:
Magnesium chloride has Ionic bonding.
Hydrogen chloride has Covalent bonding.
Chlorine has Covalent bonding.
Only Magnesium has metallic bonding (3).
ygyjhu went to the store and bumped into afghsiugshjkds
Answers
Answer:
well dont hurt yourself
Explanation:
its not very good to
Is NaHCO3 a compound? Explain pls!
Answers
Answer:
Yes it is
Explanation: because it is composed of identical molecules consisting of atoms of two or more chemical elements.
hope it helps <3
YO SOMEONE ANSWER DIS ASAP I GOT 2 MINUTES
Answers
Answer:
Solids 1 and 3
Explanation:
Their melting points are almost identical and each element has a unique melting point.
guys please help me i really need help! pls and thank you!
Answers
Answer:
Hydrogen
Explanation:
Which formula represents a polar molecule? 1. O2 2. CO2 3. NH3 4. CH4
Answers
Answer:
NH3.
Explanation:
You can draw Lewis diagrams to answer this question and what distinguishes a polar from a nonpolar molecule: A nonpolar molecule must be symmetric and have no lone pairs on its central atom. The only one that fits the criteria necessary to be a polar molecule is NH3.
The chemical formula which represents a polar molecule is NH₃ as there is charge separation in the molecule.
What is chemical formula ?Chemical formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols of elements. It also makes use of brackets and subscripts.
Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form is called empirical formula.
It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.
There are four types of chemical formula:
1)empirical formula
2) structural formula
3)condensed formula
4)molecular formula
Learn more about chemical formula,here:
https://brainly.com/question/29031056
#SPJ6
Copper carbonate (CuCO3) reacts with hydrochloric acid (HCl) according to this equation:
CuCO3(s) + 2HCl(aq) → CuCl2(aq) + H2O(l) + CO2(g).
Which statement correctly describes the substances in this reaction?
A.
Exactly one product and two reactants are either liquid or dissolved in water.
B.
Exactly one of the reactants is in a water-based solution, but none of the products are.
C.
The reactants include both a liquid and a gas.
D.
Exactly one reactant is a solid, and exactly one product is a gas.
E.
The products include a solid, a liquid, and a gas.
Answers
Answer:
d
Explanation:
plato
Answer:
d
Explanation:
if hydrochloride tablets and eno combine what will the reaction
Answers
answer is attached in the image below
Answer:
Hydrochloric Acid
Explanation:
Aqueous magnesium chloride is added to aqueous silver nitrate. A white precipitate forms. Write the chemical equation for this reaction.
Answers
Answer:
1. Molecular equation
BaCl2(aq) + 2AgNO3(aq) –> 2AgCl(s) + Ba(NO3)2 (aq)
2. Complete Ionic equation
Ba²⁺(aq) + 2Cl¯(aq) + 2Ag⁺(aq) + 2NO3¯ (aq) —> 2AgCl(s) + Ba²⁺(aq) + 2NO3¯(aq)
3. Net ionic equation
Cl¯(aq) + Ag⁺(aq) —> AgCl(s)
Explanation:
Answer:
The symbol for magnesium chloride is MgCl2 and silver nitrate is Ag(NO3)2 so the equation will be :
MgCl2 + Ag(NO3)2 → AgCl2 + Mg(NO3)2
This drawing shows a human body system.
What is the primary function of this body system?
A. The transport of nutrients, water, and oxygen to body cells.
B. The chemical breakdown of food into smaller pieces.
C. The protection of vital organs from injury.
D. The production of hormones that regulate growth and metabolism.
Answers
Answer:
This question is incomplete
Explanation:
This question is incomplete because of the absence of the drawing referred to in the question.
However, each option refers to a particular respiratory system and with the organs and the tissues mentioned here one can eventually identify which option is correct when the drawing is available.
A) The system described here is the cardiovascular system (or the circulatory system). This system involves the heart, blood vessels and the blood (which are what help in the transport of the materials mentioned in the question).
B) The system described here is the digestive system. This system involves the gastrointestinal tract and organs (that assist in the production/secretion or storage of chemicals that breakdown food into smaller pieces) such as the mouth, esophagus, stomach, small intestine, large intestine, rectum and the anus.
C) The system described here is the skeletal system. This system involves all the bones and joint in the body (the skeleton) which also helps in protecting organs in the body.
D) The system described here is the Endocrine system. This system involves several internal glands (such as the thyroid gland and the adrenal glands) in the body.
NOTE: Identify which organ and/or tissue is present in the diagram and use that to select the appropriate option from the description of each of the options provided above.
Answer:
b
Explanation:
When a pendulum swings, at which point is kinetic
energy highest:
Answers
Answer:
3
Explanation:
6.3 moles of water h20
Answers
Answer:
6.3 moles of water = 6.3*18=113.4 grams per mole
Explanation:
what is the specific heat of the following materials:
aluminum
water
rubbing alcohol
cooking oil
Answers
Answer:the sun
Explanation:leqjs
Let's look it up
Aluminium:-
0.89 J/kg°CWater:-
4.186J/g°CAlcohol:-
0.588cal/g°CCooking oil:-
1.67Kj/kg°CA wave on a lake has a wavelength of 5.0 M and a Frequency of 4 Hz. What is the speed of the wave in m/s?
Answers
Answer:
The appropriate speed will be "20 m/s".
Explanation:
The given values are:
Wavelength,
λ = 5.0 M
Frequency,
f = 4 Hz
Now,
The speed of the wave will be:
⇒ [tex]V=f\times \lambda[/tex]
On putting the values, we get
⇒ [tex]=4\times 5.0[/tex]
⇒ [tex]=20 \ m/s[/tex]
What is the energy required to go from a solid to a liquid called?
A. The latent heat of fusion
B. The thermal energy of a substance
C. The latent heat of vaporization
D. The specific heat capacity
Answers
Answer:
enthalpy of fusion also called heat of fusion
define effervesence
Answers
Answer:
is the getting out of a gas in a water solution or it the property of forming bubbles
What is responsible for the blue sky?
Answers
Answer:
sun shine
Explanation:
Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered more than the other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time
Answer:
Sunlight
Explanation:
Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered more than the other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. ... Also, the surface of Earth has reflected and scattered the light.
i need help on this science question
Answers
Answer:
C
Explanation:
The kinetic energy of a body is the energy due to the motion of a body. It is mathematically given as;
Kinetic energy = [tex]\frac{1}{2}[/tex] m v²
m is the mass of the body
v is the velocity
Now, let us find the K.E from the given choices;
Option C will have the greatest kinetic energy;
mass = 0.14kg , v = 40m/s
Kinetic energy = [tex]\frac{1}{2}[/tex] x 0.14 x 40² = 112J
What are the different states of matter and how do they transition from one to
the other? Help plz
Answers
Solid is the state in which matter maintains a fixed volume and shape; liquid is the state in which matter adapts to the shape of its container but varies only slightly in volume; and gas is the state in which matter expands to occupy the volume and shape of its container.??.....
Wut is answer pls???
Answers
Answer:
7 no ans is C
8 no ans use of magnet .I am not sure
please help im stuckkkk
Answers
Answer:
Just in case you want confirmation yes, its mid ocean ridge
GIVING BRAINLEST TO WHOEVER HELPS ME AND GETS THE RIGHT ANSWER.
What is the energy source that powers plate movements ?
A. Magma and lava
B. Earth’s magnetic field
C. The sun
D. Earths not interior
Answers
When 1000 C of charge is passed through CuSO4 solution, x g of copper is deposited. How much charge should be passed through the solution to deposit 5x g of copper?
Answers
Number of charge = 5018 C
Further explanationGiven
1000 C of charge for x grams of copper
Required
Number of charge
Solution
Faraday's Law :
[tex]\tt W=\dfrac{e.i.t}{96500}\\\\W=\dfrac{e.Q}{96500}[/tex]
For 1000 C, W = x grams
[tex]\tt x=\dfrac{1000.e}{96500}=0.0104e[/tex]
For 5x grams :
[tex]\tt 5x=\dfrac{e.Q}{96500}\\\\5\times 0.0104e=\dfrac{e.Q}{96500}\\\\Q=\dfrac{96500\times 5\times 0.0104e}{e}=5018~C[/tex]
Which of the following is true about nuclear fusion
a) it occurs in the sun
b) a heavy atom is split
c) it can be controlled easily
d) an electron is lost by the atom
Answers
Answer:
i would assume that it would be (a)
Explanation:
The Sun generates its energy by nuclear fusion
NUCLEAR FISSION is when the heavy atom is split
fusion energy is scientifically feasible. Plasma conditions that are very close to those required in a fusion reactor are now routinely reached in experiments
mass gets lost is nuclear fusion
so (a) is the most accurate
Answer:
it occurs in the sun
Explanation:
just took the test so its A. GL!
What kind of bond is present in HCI
A. Valence Bond
B. Ionic Bond
C. Metallic bond
D. Covalent Bond
Answers
Which compound has both ionic and covalent bonding? *
Ethanol
Glucose
Calcium carbonate
Dichloromethane
Answers
Answer:
Calcium carbonate
Explanation:
Ionic compounds that tend to have one or more polyatomic ions are the ones that tend to exhibit both ionic and covalent bonding. The only one that meets this is calcium carbonate.
The reaction of magnesium chloride with silver nitrate gives a precipitate of silver chloride.
MgCl2(aq) + 2AgNO3(aq) + Mg(NO3)2(aq) + 2AgCl(s)
A solution containing 0.001 mol of magnesium chloride reacts with excess silver nitrate.
What is the mass of the precipitate formed?
[Molar mass/gmol-': AgCl = 143.4]
A 0.0729
B 0.1439
C 0.287g
D 0.574g
(Total for Question 5 = 1 mark)
Answers
Answer:
Mass = 0.287 g
Explanation:
Given data:
Number of moles of MgCl₂ = 0.001 mol
Mass of precipitate formed (AgCl) = ?
Solution:
Chemical equation:
MgCl₂(aq) + 2AgNO₃(aq) → Mg(NO₃)₂(aq) + 2AgCl (s)
now we will compare the moles of MgCl₂ and AgCl.
MgCl₂ : AgCl
1 : 2
0.001 : 2/1×0.001 = 0.002
Mass of AgCl:
Mass = number of moles × molar mass
Mass = 0.002 mol × 143.4 g/mol
Mass = 0.287 g