erickamiles1797
16.04.2021 •
Chemistry
Students are testing water from several locations for water pollution. Which location will most likely have the cleanest water
Solved
Show answers
More tips
- F Family and Home What is Most Important in Men s Lives?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Chemistry
- C Chemistry The table below shows the electronegativity values of various elements on the periodic table. Electronegativities Which pair of elements would form an ionic bond? carbon (C)...
- C Chemistry Explain why there is Sometimes a delay in thevisible reaction when a metalsuch as aluminium or magnesium reacts with a dilute acid....
- C Chemistry Please please help meee with answer I will give you...
- C Chemistry What is the mass percentage of cobalt in cobalt(ii) fluoride, cof2?...
- C Chemistry Abacteria cell could best be classified as a(n) cell. a. prokaryotic b. eukaryotic c. animal d. plant...
- C Chemistry If food dropped on the floor is picked up within 5 seconds, it is okay to eat....
- C Chemistry What are the shorthand and long hand electron configurations for chlorine....
- C Chemistry Which element has the largest atomic radius...
- C Chemistry Compare and contrast the bohr model of the atom with the modern model of the atom. what observations does the modern model explain that the bohr model did not?...
- C Chemistry Can someone plz fill in these coefficients 4., 5., 6., 7....
Ответ:
Ответ:
#Divide given mass with their molar masses.
C=48.38÷12.01= 4.03mols
H= 6.74÷1.0079= 6.69mols
O= 53.5÷16.00= 3.34mols
#Divide the moles with the lowest mole.
C = 4.03÷3.34 = 1.21
H = 6.69÷3.34 = 2.00
O = 3.34÷3.34 = 1
∴Emperical Formula = CH₂O
#Molar mass of CH₂O = 12.01 + (1.0079 x 2) + 16.00 = 30.02 g/mol
#Divide both moler masses: 180.15g/mol÷30.02g/mol = 6
#Multiply the answer with the Emperical formula to get the Molecular formula: 6 x (CH₂O) = C₆H₁₂O₆
Empirical Formula: CH₂OMolecular Formula: C₆H₁₂O₆Explanation:
Firstly, you have to divide the three masses of the elements with their respective molar mass to find their moles. After you've found the moles use the lowest mole to divide the moles of each element again to find your empirical formula. Then you calculate the molar mass of the empirical formula and divide the molar mass with the given molar mass of finally, multiply the answer with the empirical formula.