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alexandr402 [8]
3 years ago
11

How many atoms of Cu are in 385 grams?

Chemistry
2 answers:
Sloan [31]3 years ago
8 0
There are about 6 moles of copper atoms in 385 grams.
Tems11 [23]3 years ago
7 0

Answer:

1 gram I think it is right

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How many particles are in 1.40 x 10^7 mol of aluminum (Al)?
SpyIntel [72]

Answer:

<h3>Hlo there !! </h3>

<u>One mole of any substance contains 6.022*1023 structural units (atoms, molecules, ions, etc.). This number is known as the Avogadro constant.</u>

<u>One mole of any substance contains 6.022*1023 structural units (atoms, molecules, ions, etc.). This number is known as the Avogadro constant.So 1.04*107 mol of Al contains 1.40*107 * 6.022*1023 = 8.43*1030 structural units (in case of Al – atoms).</u>

<h3><u>8.43*1030 particles Al.</u></h3>

Explanation:

<h3>Hope this helps !!</h3>
5 0
2 years ago
Help needed urgently<br>the word missing or partially seen is oxygen ​ I forgot to put more pointa
butalik [34]

Explanation:

2.04 % hydrogen

32.65% sulphur

65.31% is oxygen

atomic ratio

hydrogen =2.04÷1=2.04

sulphur =32.65÷32=1.02

oxygen =65.31÷16=4.08

simplest ratio

hydrogen = 2.04÷1.02=2

sulphur =1.02÷1.02=1

oxygen =4.08÷1.02=4

empirical formula is H2SO4

4 0
3 years ago
What is the molarity of a solution that contain 1.1 miles of lithium in 0.5 liters of solution
Solnce55 [7]
1.1 Moles / 0.5 Liters = 0.22 Molarity
4 0
3 years ago
Which substances corrode copper?​
DiKsa [7]
The presence of oxidizing acids; heavy-metal salts, sulfur, and ammonia; and a number of sulfur and ammonia compounds can cause corrosion to set in. Water that comes from a well is much more likely to contain these materials and put copper lines in jeopardy—but it can occur in the civic water system as well.

Copper corrodes at insignificant rates when used in areas with unpolluted air, non-oxidizing acids, and water. However, it happens more rapidly with the presence of road salt, ammonia, sulfur, oxidizing acids

Acidic substances react with the surface of copper, causing it to tarnish and corrode almost instantly. This corrosion is highly soluble, leading to the presence of toxic copper salts in the food. This is why it is not recommended to use copper vessels for foods high in acidity, such as milk, wine, or vinegar.
4 0
2 years ago
What are the 4 factors that makes a good fuel
Paha777 [63]

Hi Jojo


The 4 factors that makes a good fuel are

1) It should be cheap

2)It should not burn too fast or too slowly

3) It should be easily available

4) It should have a high calorific value


I hope that's help !

8 0
3 years ago
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