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
irinina [24]
2 years ago
7

How many moles of HCL are in 18 grams? (Use the molar mass to convert miles to grams. Round you answer to 2 decimal places.)

Chemistry
2 answers:
Kipish [7]2 years ago
7 0

Answer:

0.49 mol HCl

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

18 g HCl

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

Molar Mass of H - 1.01 g/mol

Molar Mass of Cl - 35.45 g/mol

Molar mass of HCl - 1.01 + 35.45 = 36.46 g/mol

<u>Step 3: Convert</u>

<u />18 \ g \ HCl(\frac{1 \ mol \ HCl}{36.46 \ g \ HCl} ) = 0.493692 mol HCl

<u>Step 4: Check</u>

<em>Round our answer to 2 decimal places.</em>

0.493692 mol HCl ≈ 0.49 mol HCl

tresset_1 [31]2 years ago
6 0

Answer:

0.49 mol

Explanation:

<h3> mol=given mass /molecular mass </h3><h2>: = 18/36.5 </h2><h3> =0.49</h3>

<h3 />

You might be interested in
How does ice float on water?<br><br> Why does solid ice float on liquid water?
kifflom [539]

Answer:

Because there is trapped air inside the cube of ice

Explanation:

when water freezes it has water molecules and air molecules and as it freezes they move slower and slower until it freezes and they become stuck

4 0
3 years ago
What elements react the most? Like have the most reactivity.
Vera_Pavlovna [14]

If you mean what group of elements react the most, the answer is the alkali metals and the halogens because they both only either need to gain or lose one electron. If you mean the most reactive element, it would be fluorine because it has the most electronegativity.

4 0
2 years ago
If a drug caused a sudden release of large amounts of calcium in skeletal muscle, from which structure would the calcium come?
lawyer [7]
<span>Sarcoplasmic reticulum</span>
7 0
3 years ago
Read 2 more answers
Limit sodium intake to less than ____________ per day. Limit saturated fat intake to less than ____________ of daily kilocalorie
kotykmax [81]

Answer:

Limit sodium intake to less than <em><u>2,300mg</u></em> per day. Limit saturated fat intake to less than <em><u>10% </u></em>of daily kilocalories. Limit intake of added sugars to less than<em><u> 5% </u></em>of daily kilocalories. Limit intake of alcohol to less than <em><u>3 drinks </u></em>per day for men or less than <em><u>2 drinks</u></em> per day for women.

Explanation:

The human body has been designed such that there are dietary requirements and benefits these intakes give the body. However, excess consumption of certain foods, could be far more detrimental both on the short and long run.

Sodium is majorly consumed in the form of salt (Sodium chloride). When eaten in the right quantity, it serves as an electrolyte which maintains fluid balance in the body however, when taken in excess, it pulls too much fluid, leading to high blood pressure. The recommended salt intake therefore, is less than 2,300mg daily.

Saturated fat when consumed, is a good source for the body to convert diet to energy, keeping the blood sugar levels constant. Lard, fatty meats are examples of saturated fat. However, when consumed in large amounts, saturated fats can cause cholesterol build up in blood vessels, increasing the risk of heart disease. Its intake should therefore be limited to less than 10% of daily kilocalories.

Added sugars are sources of energy to the body however, when taken in large amounts, could impede normal metabolism in the body. Added sugars should be restricted to less than 5% of daily kilocalories in diet.

Alcohol intake such as in wine, when done in moderation, has been shown to reduce the risk of heart diseases. However, when taken in excess, tolerance builds and exposes the body to the risk of conditions such as liver disease, alcohol use disorder.

4 0
3 years ago
22.0 g of a metal absorbs 713 J when it is heated from 28.3 °C to 72.8°C. What is
frosja888 [35]

Explanation:

the answer and explanation is in the picture

hope this helps

please like and Mark as brainliest

4 0
3 years ago
Other questions:
  • All but one is a method of passve transport in cells
    15·2 answers
  • The radii of the sodium and potassium ions are 102 pm and 138 pm, respectively. which compound has stronger ionic at- tractions,
    15·1 answer
  • The word "atom" comes from the Greek word for "indivisible". In what way are atoms indivisible?
    10·2 answers
  • Which of the following could be considered a scientific statement
    15·2 answers
  • If an electromagnetic wave has a frequency of 4.5 x 10^18 Hz, what is its wavelength? The speed of light is 3 x 108 m/s.
    7·1 answer
  • A chemist makes of nickel(II) chloride working solution by adding distilled water to of a stock solution of nickel(II) chloride
    14·1 answer
  • Can someone please help!
    15·1 answer
  • Did you know An apple, potato, and onion all taste the same if you eat them with your nose plugged , CRAZYYYYYYYYY
    5·1 answer
  • Which compounds were classified as organic compounds according to the early chemists
    7·1 answer
  • Which of the following with the kinetic theory address? a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!