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
Alexxx [7]
3 years ago
8

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

Chemistry
1 answer:
lesya692 [45]3 years ago
8 0

Answer:

3.72 mol Hg

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

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

Explanation:

<u>Step 1: Define</u>

D = 13.6 g/mL

54.8 mL Hg

<u>Step 2: Identify Conversions</u>

Molar Mass of Hg - 200.59 g/mol

<u>Step 3: Find</u>

13.6 g/mL = x g / 54.8 mL

x = 745.28 g Hg

<u>Step 4: Convert</u>

<u />745.28 \ g \ Hg(\frac{1 \ mol \ Hg}{200.59 \ g \ Hg} ) = 3.71544 mol Hg

<u>Step 5: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

3.71544 mol Hg ≈ 3.72 mol Hg

You might be interested in
An atom x contains 14 protons, 13 electrons, and 12 neutrons, and atom y contains 14 protons, 14 electrons, and 12 neutrons. wha
Vika [28.1K]
<span>a. x and y are atoms of the same element. 

If both atoms contain the same amount of protons, they are always the same element.
</span>
7 0
2 years ago
Read 2 more answers
PLZ HELP QUICK!!
MissTica
I have the same question too!!!Dang I thought I would get a answer I just guessed
8 0
3 years ago
What is the standard unit used to measure mass?<br><br> cubic meters<br> gram<br> liter<br> meter
azamat
Your answer is grams
8 0
3 years ago
Read 2 more answers
Which chemical reaction needs more energy to break bonds in the reactants
MA_775_DIABLO [31]

Answer:An endothermic reaction

Explanation: In an endothermic reaction, it takes more energy to break the bonds of the reactants than is released when the bonds in the products are formed. In an endothermic reaction, the temperature goes down.

6 0
3 years ago
Read 2 more answers
What are the effects of climate change? Answer this question integrating other topics of science.
riadik2000 [5.3K]

Answer:

»Climatic change leads to malnutrition.

e.g when its cold season, osmoregulation decreases and rate of metabolism declines.

This is because the enzymes lack that optimum temperature for their catalytic activity to take place hence improper digestion.

»Leads to promotion of predation in ecosystem.

such as reptiles e.g snakes, lizards get away from shelters on cold days since they are cold blooded, hence their predators such as animals, birds increase.

3 0
2 years ago
Other questions:
  • I WILL GIVE BRAINLIEST!!!!
    9·1 answer
  • Rate data have been determined at a particular temperature for the overall reaction 2NO(g) + 2H2(g) → N2(g) + 2H2O(g). The value
    5·1 answer
  • What results electrons into having light produced by neon gas?
    12·1 answer
  • Consider the five balanced chemical reactions listed below, all using O2 as a reactant. Normally, O2 is an excess reagent for re
    5·1 answer
  • The constant-pressure specific heat of air at 25°C is 1.005 kJ/kg °C. Express this value in kJ/kg-K. J/g °C, kcal/kg-°C, and Btu
    12·1 answer
  • + H₂O
    11·1 answer
  • When Logan opens a new bottle of carbonated beverage, the sudden release of pressure causes the beverage to bubble up and overfl
    15·1 answer
  • Which condition must exist in order for conduction to occur between two substances?
    10·2 answers
  • Hello..................<br><br>.....​
    9·1 answer
  • Which model of the atom is thought to be true?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!