abdihakimkadle
abdihakimkadle abdihakimkadle
  • 01-12-2020
  • Chemistry
contestada

How many moles are present in 54.8 mL of mercury if the density of mercury is 13.6 g/mL?​

Respuesta :

Space
Space Space
  • 01-12-2020

Answer:

3.72 mol Hg

General Formulas and Concepts:

Chemistry - Atomic Structure

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Density = Mass over Volume

Explanation:

Step 1: Define

D = 13.6 g/mL

54.8 mL Hg

Step 2: Identify Conversions

Molar Mass of Hg - 200.59 g/mol

Step 3: Find

13.6 g/mL = x g / 54.8 mL

x = 745.28 g Hg

Step 4: Convert

[tex]745.28 \ g \ Hg(\frac{1 \ mol \ Hg}{200.59 \ g \ Hg} )[/tex] = 3.71544 mol Hg

Step 5: Check

We are given 3 sig figs. Follow sig fig rules and round.

3.71544 mol Hg ≈ 3.72 mol Hg

Answer Link

Otras preguntas

The joint comsec monitoring activity provides opsec assistance by:
What is the solvent in biological solutions such as cytoplasm and blood?
Select two kingdoms and briefly describe three characteristics used to distinguish between members of one kingdom and another
when you solve a problem involving money, what can a negative answer represent?
What effect does a small number of wild dogs have on the rabbit population
The philosophical position that every behavior has a cause is known as
In many cases, a ribbon organizes buttons and options in ________________ .
What model of federalism began in the 1930s?
At a price for which quantity demanded exceeds quantity supplied, a __________ is experienced, which pushes the price __________ toward its equilibrium value. s
Solve the quadratic by quadratic formula below x squared-14x=-49