The bond type in the substance is ionic bonding because, ionic compounds in their solid state are not conducting but the ions they furnish when dissolved in water conducts electricity.
What are ionic compounds ?Ionic compounds are formed between metals and nonmetals. Metals are electropositive and they can easily loss electrons to from cations. Metals donate electrons to the electron deficient non metals to achieve octet.
Ionic bonding is a strong electrostatic force between opposite charged ions. Hence this bond is stronger than other types of bond. This intact bonding make them bad conductors in the solid state.
However they are electrically conducting the molten state or when dissolved in water due to the presence of free ions and electrons in the solution.
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A compound has a molar mass of 100 g/mol and the percent composition (by mass) of 65.45% C, 5.45% H, and 29.09% 0. Determine the empirical formula and the molecular formula.
A) CHO and C6H6O6
B) C3H3O and C6H6O2
C) C3HO and C6H2O2
D) CH2O and C4H8O4
E) CH4O and C3H12O3
Answer:
B) C3H3O and C6H6O2
Explanation:
Given data:
Molar mass of compound = 100 g/mol
Percentage of hydrogen = 5.45%
Percentage of carbon = 65.45%
Percentage of oxygen = 29.09%
Empirical formula = ?
Molecular formula = ?
Solution:
Number of gram atoms of H = 5.45 / 1.01 = 5.4
Number of gram atoms of O = 29.09/ 16 = 1.8
Number of gram atoms of C = 65.45 / 12 = 5.5
Atomic ratio:
C : H : O
5.5/1.8 : 5.4/1.8 : 1.8/1.8
3 : 3 : 1
C : H : O = 3 : 3 : 1
Empirical formula is C₃H₃O.
Molecular formula:
Molecular formula = n (empirical formula)
n = molar mass of compound / empirical formula mass
Empirical formula mass = 12×3 + 1.01 ×3 + 16×1 = 55.03
n = 100 / 5503
n = 2
Molecular formula = n (empirical formula)
Molecular formula = 2 (C₃H₃O)
Molecular formula = C₆H₆O₂
How many moles of oxygen are in 2.00 moles of NaCIO4?
Answer: 8 Moles of Oxygen
Explanation: The formula shows that there are (exactly) 4 oxygen atoms in each mole or formula unit. Therefore 4 * 2.00 = 8.
Describe what causes the airbag to inflate on the particle level
Answer:
The chemical at the heart of the air bag reaction is called sodium azide, or NaN3. CRASHES trip sensors in cars that send an electric signal to an ignitor. The heat generated causes sodium azide to decompose into sodium metal and nitrogen gas, which inflates the car's air bags
Explanation:
5. A box with a volume of 22.4 L contains 1.0 mol of nitrogen and 2.0 mol of hydrogen at 0°C. Which of the following statements is true?
A. The total pressure is 202 kPa.
B. The partial pressure of N2 is 101 kPa.
C. The total pressure in the box is 101 kPa.
D. The partial pressures of N2 and H2 are equal.
B. The partial pressure of N2 is 101 kPa
Further explanationGiven
volume = 22.4 L
1.0 mol of nitrogen and 2.0 mol of hydrogen at 0°C
Required
Total pressure and partial pressure
Solution
Ideal gas law :
PV = nRT
n total = 3 mol
T = O °C + 273 = 273 K
P = nRT/V
P = 3 x 0.08205 x 273 / 22.4
P total = 3 atm = 303,975 kPa
P Nitrogen = 1/3 x 303.975 = 101.325 kPa
P Hydrogen = 2/3 x 303.975 = 202.65 kPa
Answer:The partial pressure of N2 is 101 kPa
Explanation:
Boron carbonate decomposes into boron oxide and carbon dioxide, how many moles of carbon dioxide are produced when 5.0 mol of boron carbonate decomposes completely?
How many molecules in 4C6H12OH
Answer: 80
Explanation:
12+6+1+1=20
20x4=80
How many grams of CO2 can be produced from 150 grams of O2?
C3H8 + 5 02
->
3 CO2 + 4H2O
120 g CO₂
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableStoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
[RxN - Balanced] C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
[Given] 150 g O₂
Step 2: Identify Conversions
[RxN] 5 mol O₂ → 3 mol CO₂
[PT] Molar Mass of O - 16.00 g/mol
[PT] Molar Mass of C - 12.01 g/mol
Molar Mass of O₂ - 2(16.00) = 32.00 g/mol
Molar Mass of CO₂ - 12.01 + 2(16.00) = 44.01 g/mol
Step 3: Stoich
[DA] Set up: [tex]\displaystyle 150 \ g \ O_2(\frac{1 \ mol \ O_2}{32.00 \ g \ O_2})(\frac{3 \ mol \ CO_2}{5 \ mol \ O_2})(\frac{44.01 \ g \ CO_2}{1 \ mol \ CO_2})[/tex][DA] Multiply/Divide [Cancel out units]: [tex]\displaystyle 123.778 \ g \ CO_2[/tex]Step 4: Check
Follow sig fig rules and round. We are given 2 sig figs.
123.778 g CO₂ ≈ 120 g CO₂
What is the percent composition of the element hydrogen in the compound methane CH4
Answer:
The answer is 25.14 percent. Hope this helps.
PLEASE ANSWER BY 9:00pm PT
“A person takes in a breath of 450.0 mL air at 756 mmHg and -10.0°C. Assuming that amount and pressure remains constant, what is the volume of air when it warm to body temp (37.0°C)? (Convert °C to Kelvins (+273))”
- my chem teachers question
The given answer is 58.9 mL
I didn’t know how to get to that conclusion
And I have to show my work
Answer:
thanks to all the mortal those who are born must die one day that it cut in cannot be avoided as ripe fruit fall of the tree so it is common to all the mortal those who are born must die one day that it cut
Explanation:
silghjnb bj i bb b nv bv hc U and lamenting produce a few of the tree so much for your time is common to both of us ☺️ to all the said that death of the tree so it cut in cannot be avoided as well as well but the mortal Kombat X the said
Find the amount of atoms from 128 grams of NaCl?
Answer:
13.25 ×10²³ atoms
Explanation:
Given data:
Mass of NaCl = 128 g
Number of atoms = ?
Solution:
First of all we will calculate the number of moles of NaCl.
Number of moles = mass/molar mass
Number of moles = 128 g/ 58.4 g/mol
Number of moles = 2.2 mol
Number of atoms:
1 mole of any substance contain 6.022×10²³ atoms.
2.2 mol × 6.022×10²³ atoms / 1mol
13.25 ×10²³ atoms
pleaseeeee I really need help :3
Answer:
C. 5 inches
Explanation:
don't worried, i learned that from my teacher
How are a carrot, an amoeba, and a bacterium alike?
They are prokaryotes.
They are eukaryotes.
They are all made of cells.
They all live in soil.
Answer:
c they are all made of cells
Explanation:
that's the only similarity
Precautions to take during electroplating
Answer:
Always be scared of electroplating. ...
Follow all electrical safety precautions. ...
Use all safety Precautions. ...
Use that Fume Hood. ...
It's a chemistry lab, set it up like one. ...
Always add acid to water. ...
Don't overheat your solutions! ...
Don't mix acid and cyanide solutions.
Can someone please help me quickly!!!
Answer:
Mercury
Explanation: Under standard conditions mercury is a shiny, heavy, silvery liquid. It is the only metal that is liquid at room temperature.
Answer:
Mercury, Venus, earth and mar, Jupiter, Saturn, urines, Neptune.
Explanation:
Does the following compound contain a polyatomic ion? LiC2H3O2
Yes
No
Answer:
yes
Explanation:
the polyatomic ion is acetate, C2H3O2
How many atoms of helium are present in 0.366g He?
Answer:
Explanation:
mass of one atom of helium-4 is one-third the mass of one atom of carbon-12. You can find ... mass He. 1 mole He. 4.00 g He. -= 0.366 g He. 0.0914 mothé x 1 motte. Helium ... How many moles of oxygen atoms are present in 5.00 mol diphos-.
Which would have the greatest evaporation: pure water or salt water?
Answer:
Pure Water.
Explanation:
Pure water evaporates faster than salt water.
How many orbitals are for p shapes
Answer:
3
Explanation:
From the table below we see that we can have three possible orbitals when l = 1. These are designated as p orbitals and have a sort of 8 shapes. Each of the p orbitals has a different orientation in three-dimensional space.
If the spring constant is 30N/m and a spring is stretched by 0.3m, how much force has been applied?
Answer:
Question:
A spring with a spring constant of 30 N/m is stretched 0.2 m from its equilibrium position. How much work must be done to stretch it an additional 0.1 m?
Elastic Potential Energy:
The work that needs to be done by any object is a form of energy. The work can be defined in terms of the work-energy theorem, which states that the work can either be the difference in the kinetic energy of a system or the difference in the potential energy of a system. There is a special type of potential energy reserved exclusively for
which model of the atom is most accurate?
Answer:
it's the electron cloud model
4) What is the Formula weight of MgCl2 and the explanation.
95.21 g/mol
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableExplanation:Step 1: Identify
MgCl₂
Step 2: Find Formula Weight
[PT] Molar Mass of Mg - 24.31 g/mol
[PT] Molar Mass of Cl - 35.45 g/mol
Molar Mass of MgCl₂ - 24.31 + 2(35.45) = 95.21 g/mol
(04.05 LC) In which of the following forms is carbon present in the atmosphere? Carbon dioxide Glucose Oil Water vapor
Answer:
Carbon dioxide
Explanation:
that's all I can say
What are the steps needed to calculate the percent composition of Carbon in CH4
Calculate the molar concentration of 4.75 moles of NaCl in
0.50 liters of water?
Answer:
9.5 m
Explanation:
First, divide 4.75 m by the 0.50 l
4.75/0.50
This leaves you with 9.5 m
What is the control center or “brain” of a cell called?
Answer: The nucleus is often referred to as the control center, or brain, of the cell and contains the DNA, or genetic material. The nucleus is surrounded by the nuclear envelope. ... Human cells are eukaryotic cells.
Explanation:
Answer:
Nucleus
Explanation:
not to good at explaining but I'm hoping this is right!
Cell organizations^ pls help
Answer:
Multicellular organisms have cells that are organized in specific ways to perform specialized functions. From the most complex level to the simplest level, the five levels of organization for the sheep should be ordered as:
whole organism → organ system → organ → tissue→ cell
Explanation:
What is the purpose of the periodic table?
Answer:
the periodic table is important because it is organized to provide a alot of information about elements and how they relate to one another in one easy-to-use reference. The table can be used to predict the properties of elements, even those that have not yet been discovered.
Explanation:
Which event may occur when ocean salinity increases?
mass of water increases
the freezing point of water increases
sunlight in deeper locations decreases
amount of dissolved gases in water increases
Answer:
The answer is C: “sunlight in deeper locations decrease”
Explanation:
C is the answer because the more salinity water has.. the harder it is to see and the harder it is for light to travel through the ocean.
Answer:
c
Explanation:
When an electron in an atom moves from high to low
energy levels:
a alpha particles are emitted
b gamma rays are emitted
c energy is emitted as electromagnetic radiation
d energy is absorbed
Answer:energy is emitted as electromagnetic radiy
Explanation:
List the three must haves of a hypothesis
Answer:
1. definition of a problem
2.solution to the problem
3.the result
Explanation:
Hope this helps
The three (3) must haves of a hypothesis include the following;
A hypothesis must be tested and falsifiable.A hypothesis must be supported by an observation and results of control experiments.A hypothesis must proffer a solution to a problem.A hypothesis can be defined as a testable explanation for an observation or a scientific problem. Thus, a hypothesis is a type of statement that is typically considered to be either tentative or an educated guess.
An example of a hypothesis is saying;
Corona virus is caused by the introduction of the "5G" technology.Generally, the three (3) must haves of a hypothesis include the following;
1. A hypothesis must be tested and falsifiable.
2. A hypothesis must be supported by an observation and results of control experiments.
3. A hypothesis must proffer a solution to a problem.
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