1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yuradex [85]
3 years ago
6

A sample compound with a molar mass of 34.00g/mol is found to consist of 0.44g H and 6.92g O. Calculate both empirical and molec

ular formulas.
Chemistry
1 answer:
balu736 [363]3 years ago
3 0

Answer:

E.F= OH

M.F=O_{2} H_{2}

Explanation:

Empirical Formula

Step 1: Calculate mols of each element

0.44gH(1 mol H/ 1.008g H)= 0.4365 mol H

*note leave extra sig figs for calculations

6.92gO(1 mol O/ 16 g O)=0.4325 mol O

Step 2: Identify which is the smallest mol

*in this case 0.4365 mol H> 0.4325 mol O so we will use 0.4325 mol O

Step 3: Divide above calculations by the smallest mol

0.4325 mol O/0.4325= 1

0.4365 mol H/0.4325= 1.009 *rounds to 1

Step 4: use calculations as subscripts

Oxygen = 1 so the subscript will 1 (O)

Hydrogen = 1 so the subscript will 1 (H)

making E.F= OH

Molecular Formula:

Step 1: identify  molecular mass and mass from the E.F

the molecular mass is given 34.00g/mol

the mass of the E.F is

(oxygen mass from periodic table)+(hydrogen mass from periodic table)

16+1.008= 17.008

Step 2:Divide the molecular mass by the mass given by the emipirical formula.

\frac{34.00}{17.008}= 1.999 round to 2

Step 3:Multiply the empirical formula (the subscripts) by this number to get the molecular formula.  ANSWER: M.F=2(OH)- O_{2} H_{2}

You might be interested in
What is the Molar mass of Cu2So4
almond37 [142]

Answer: Copper(I) sulfate, also known as cuprous sulfate and dicopper sulfate, is the chemical compound with the chemical formula Cu2SO4 and a molar mass of 223.15 g mol−1. It is an unstable compound as copper(I) compounds are generally unstable and is more commonly found in the CuSO4 state. It is white in color at room temperature and is water-soluble. Due to the low-stability of the compound there are currently not many applications to date.

7 0
3 years ago
How are independent and dependent variables related?
shtirl [24]
They are pretty much the cause and effect. The independent variable that is being changed in the experiment, so it is the cause. The dependant variable is the result of change the independant variable, so the effect.
3 0
3 years ago
Which of the reactants or products is a gas<br><br> c4h10<br><br> o2<br><br> co2
Alex

Answer:

co2

Explanation:

because carbon is a gas product

7 0
3 years ago
What would cause a liquid to turn into a solid?
KIM [24]
It’s C
Cooling a liquid til it freezes will cause a liquid to turn into a solid
3 0
2 years ago
Read 2 more answers
What is the charge of a chlorine ion that has<br> gained 1 electron?
nikdorinn [45]

schoOOOL SUcKS sO BADDDDDD

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the molar mass of a compound if 25.0 g of the compound dissolved in 750. Ml gives a molarity of 0.290 m?
    13·1 answer
  • What is the internal energy u of one mole of air on a very hot summer day (35∘c)? express your answer numerically in joules to t
    9·1 answer
  • Match the following words.
    9·1 answer
  • What are two ways in which mixtures differ from compounds??
    13·2 answers
  • A pain-relieving pill has a mass of 0.005 g. Express the pill’s mass in grams using scientific notation or in milligrams.
    11·1 answer
  • Identifying Changes of Matter
    9·1 answer
  • Make a concept map using words below
    13·1 answer
  • Newton's Law of Gravity says that any the effect of gravity between two objects depends on what two factors?
    11·1 answer
  • The limiting reactant in a chemical reaction is the reactant __________ Select one: A. for which you have the lowest mass in gra
    13·1 answer
  • Can a non-metal replace a metal in a single replacement reaction? If yes, is a non-metal always not able to replace a metal in a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!