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
Mazyrski [523]
2 years ago
14

How many moles of copper are there in 6.93 g of copper samplepls be quick​

Chemistry
2 answers:
aniked [119]2 years ago
8 0

Answer:

Hope it will help you a lot.

Alex_Xolod [135]2 years ago
7 0
  • Molar mass of copper=63.5g/mol
  • Given mass=6.93g

\\ \sf\longmapsto No\:of\;moles=\dfrac{Given\:mass}{Molar\:mass}

\\ \sf\longmapsto No\:of\:moles=\dfrac{6.93}{63.5}

\\ \sf\longmapsto No\:of\:moles=0.109\approx 1.11moles

You might be interested in
Many different processes, both natural and human-caused, can release carbon dioxide into the atmosphere. Which of the following
inn [45]

Answer:

carbon dioxide is added to the atmosphere naturally when organisms respire or decompose,  

Explanation:

5 0
3 years ago
Read 2 more answers
Is this answer right ?
kumpel [21]

Answer:

<h2>YES</h2>

Explanation:

Explanation

<h2>#KEEPSTUDYING</h2><h2 />
5 0
2 years ago
Read 2 more answers
What are moles in chemistry?
Firlakuza [10]
A mole is a unit to describe an amount of something/specific substance. Typically standard for measuring a large quantity of small entities like atoms, molecules, or other particles.
3 0
3 years ago
Read 2 more answers
Vitamin C contains only carbon, hydrogen, and oxygen. When a 1.00 g was combusted, 1.4991 g of CO2 and 0.4092 g of H2O were obta
Alina [70]

The empirical formula for this vitamin : C₃H₄O₃

<h3>Further explanation   </h3>

The empirical formula is the smallest comparison of atoms of compound =mole ratio of the components

The principle of determining empirical formula

  • Determine the mass ratio of the constituent elements of the compound.  
  • Determine the mole ratio by dividing the percentage by the atomic mass

Mass of C in CO₂ :(MW C = 12 g/mol, CO₂=44 g/mol)

\tt \dfrac{12}{44}\times 1.4991=0.409~g

Mass of H in H₂O :(MW H = 1 g/mol, H₂O = 18 g/mol)

\tt \dfrac{2.1}{18}\times 0.4092=0.0455~g

Mass O = Mass sample - (mass C + mass H) :

\tt 1-(0.409+0.0455)=0.5455~g

mol ratio C : H : O =

\tt \dfrac{0.409}{12}\div \dfrac{0.0455}{1}\div \dfrac{0.5455}{16}\\\\0.0341\div 0.0455\div 0.0341\rightarrow 1\div 1.33\div 1=3\div 4\div 3

5 0
3 years ago
What are some milk products made from lactic acid fermentation?
Nadusha1986 [10]
The presence of lactic acid, produced during the lactic acid fermentation is responsible for the sour taste and for the improved microbiological stability and safety of the food. This lactic acid fermentation is responsible for the sour taste of dairy products such as cheese, yoghurt and kefir.
1.<span>Western world: yogurt, sourdough breads, sauerkraut, cucumber pickles and olives.
2.</span><span>Middle East: pickled vegetables.
3.</span><span>Korea: kimchi (fermented mixture of Chinese cabbage, radishes, red pepper, garlic and ginger)
4.</span><span>Russia: kefir.
5.</span><span>Egypt: laban rayab and laban zeer (fermented milks), kishk (fermented cereal and milk mixture)
6.</span><span>Nigeria: gari (fermented cassava)
7.</span><span>South Africa : magou (fermented maize porridge)
8.</span><span>Thailand : nham (fermented fresh pork)
9.</span><span>Philippines : balao balao (fermented rice and shrimp mixture)
</span><span>Lactic acid fermentation also gives the sour taste to fermented vegetables such as traditionally cultured sauerkraut and pickles. The sugars in the cabbage are converted into lactic acid and serve as a preservative.</span>

8 0
2 years ago
Other questions:
  • A 0.150 M sodium chloride solution is referred to as a physiological saline solution because it has the same concentration of sa
    6·1 answer
  • Your mom is playing the drums in the basement. Whenever she hits the drum with all her force, the box next to the drums shakes,
    11·1 answer
  • Water filter project: using different types of filters to filter water, trying to figure out if the changes to the water would b
    7·1 answer
  • Plzz need help will give alot of point!!!!!!
    7·1 answer
  • I need help on this one plizz help me
    15·1 answer
  • A certain hybrid car has a mileage rating of 47 miles per gallon. If the car makes a trip of 279 miles, how many gallons of gaso
    15·2 answers
  • What is the chemical formula for the compound ammonium phosphate?
    7·1 answer
  • Glass has a specific heat of 0.16 calories/gram°C.
    9·2 answers
  • Examine the chemical reaction. What coefficient of O2 should be added so the number of atoms of oxygen is conserved on both side
    14·2 answers
  • Which statement accurately describes the bond that forms between carbon and oxygen to create carbon dioxide
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!