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
Dennis_Churaev [7]
3 years ago
8

How many grams of Zn are there in a sample of Zn that contains the same number of moles as a 82.1 gram sample of Ga? grams of Zn

Chemistry
1 answer:
SVEN [57.7K]3 years ago
8 0

Answer:

mass of Zn = 77.0 g

Explanation:

In the sample you have the same moles of Zn and Ga.

The formula for moles is:

Mass = moles*MM \\

Where MM: Molar Mass or Atomic Mass for elements

AM(Ga) = 69.723 amu

AM(Zn) = 65.38 amu

moles of Ga = \frac{Mass}{AM} = \frac{82.1 g}{69.723 amu} = 1.178 mole

mass of Zn = moles*AM=1.178 mole*65.38amu = 77.0 g

You might be interested in
What causes water to become denser when it is carried to the poles by surface currents? increased temperature and increased sali
Anarel [89]

Answer:

The answer is decreased temperature and increased salinity

Explanation:

It is what is known as the thermohaline circulation

The thermohaline circulation moves the water slowly. This water moves mainly due to differences in its relative density. Much denser water sinks over water that is less dense. Two factors impact the density of seawater: temperature and salinity.

Cold water is denser than hot water:

-Water cools when it loses heat, it occurs at high latitudes.

-Water is heated when it receives energy from the sun, at low latitudes.

Saltier water is much denser than water that has less salt:

-Sea water becomes salty if the evaporation rate increases.

-Sea water becomes less salty if there is a water inlet over the sea.

3 0
3 years ago
Read 2 more answers
How many atoms are there in 7.2 mol neon?
rosijanka [135]

Answer:

A) 4.3 × 10²⁴ atoms

Explanation:

Step 1: Given data

Moles of neon: 7.2 moles

Step 2: Calculate the number of atoms present in 7.2 moles of neon

In order to convert moles to toms, we need a conversion factor. In this case, we will use Avogadro's number: there are 6.02 × 10²³ neon atoms in 1 mole of neon atoms.

7.2 mol × 6.02 × 10²³ atoms/mol = 4.3 × 10²⁴ atoms

3 0
2 years ago
Nitriles can be converted into carboxylic acids. how would you use ir spectroscopy to monitor the progress of this reaction?
Lady bird [3.3K]

Fats or oils are created when the hydroxide group of glycerol combines in a dehydration synthesis process with the carboxyl group of fatty acids.

<h3>What is dehydration ?</h3>

Your body loses more fluids when you are dehydrated than you are taking in. If unattended to, it could get worse and become a serious problem.

When you don't drink enough water or lose more than you take in, you become dehydrated. Sweat, tears, vomiting, urination, and diarrhea all cause fluid loss. Climate, level of physical activity, food, and other variables can all affect how severe dehydration is.

Dark urine, decreased urination, headaches, weariness, dry skin, decreased skin turgor, and poor focus are all indicators of dehydration.

To learn more about dehydration from the given link:

brainly.com/question/12261974

#SPJ4

4 0
1 year ago
What is meant by Vulcanicity?​
scZoUnD [109]

The quality or state of being volcanic.

3 0
2 years ago
Protons and neutrons are composed of what?<br> A electrons<br> B.quarks<br> C.ions<br> D.molecules
leonid [27]
B. Quarks is the answer.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Can anyone help me :)
    14·1 answer
  • In a certain experiment 10.0g of magnesium nitride is allowed to react with 5.00 g of water. Calculate the final mass of ammonia
    8·1 answer
  • The Kelvin temperature of sample of 650 cm sample of ammonia gas is doubled what is the new volume of the gas
    10·1 answer
  • 11. A car traveling on a straight interstate at a 60 mph with its cruise
    10·1 answer
  • What is the salt that is produced when calcium hydroxide (Ca(OH)2) reacts with sulfuric acid (H2SO4)? CaSH2Ca H2O CaSO4
    12·2 answers
  • In what other planets did differentiation occur?
    10·1 answer
  • The author of Space Systems: All About Eclipses makes the point that seeing a total solar eclipse is rare. How does the author u
    7·1 answer
  • If 4.00 moles of O2 occupies a volume of 5.0 L at a particular temperature and pressure, what volume will 3.00 moles of oxygen g
    15·1 answer
  • What's the correct answer?
    10·1 answer
  • Select the correct answer.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!