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
Nesterboy [21]
2 years ago
13

Convert 2.5 X 10^24 atoms of copper to grams of copper

Chemistry
1 answer:
viva [34]2 years ago
7 0

2.5 X 10²⁴ atoms of copper is equivalent to 266.7g of Cu.

HOW TO CALCULATE MASS:

  • The mass of a substance can be calculated by multiplying the number of moles of the substance by its molar mass. That is;

  • mass of substance (g) = no. of moles (mol) × molar mass (g/mol)

  • However, the number of moles of copper must first be calculated by dividing the number of atoms by Avogadro's number as follows:

  • no. of moles of Cu = 2.5 X 10²⁴ ÷ 6.02 × 10²³

  • no. of moles = 2.5/6.02 × 10²⁴-²³

  • no. of moles = 0.42 × 10¹

  • no. of moles = 4.2moles of copper.

  • Molar mass of copper = 63.5g/mol

  • Mass of copper = 4.2mol × 63.5g/mol

  • Mass of copper = 266.7g

Therefore, 2.5 X 10²⁴ atoms of copper is equivalent to 266.7g of Cu.

Learn more at: brainly.com/question/12154684?referrer=searchResults

You might be interested in
Gaseous hydrogen iodide is placed in a closed container at 425∘C, where it partially decomposes to hydrogen and iodine: 2HI(g)⇌H
murzikaleks [220]

Answer:

0.0184

Explanation:

Let's consider the following reaction at equilibrium.

2 HI(g) ⇌ H₂(g) + I₂(g)

The concentration equilibrium constant (Kc) is equal to the product of the concentration of the products raised to their  stoichiometric coefficients divided by the product of the concentration of the reactants raised to their  stoichiometric coefficients.

Kc = [H₂] × [I₂] / [HI]²

Kc = (4.78 × 10⁻⁴) × (4.78 × 10⁻⁴) / (3.52 × 10⁻³)²

Kc = 0.0184

5 0
3 years ago
Please help now!!! 20 braily points!!!
Zigmanuir [339]

Hydrogen atom and chlorine atom makes hydrogen chloride molecules.

It is the lowest point in the substance and possesses chemical elements. Atoms don't exist on their own; instead, they combine to create ions and molecules, which combine to create the substances that we can see, feel, and touch.

One or more atoms joined together by covalent (chemical) connections make up molecules. Atoms can be imagined as circles with a central nucleus (consisting of protons and neutrons) and one or more concentric circles surrounding it that represent the "shells" or "levels" in which the electrons surrounding the atom's nucleus are located as well as markings that distinguish the electron. every level

To know more about  molecules visit : brainly.com/question/11405437

#SPJ1

4 0
1 year ago
When this reaction in equilibrium is heated, a red/brown color persists. what is true about this reaction? 2no2(
dimulka [17.4K]
NO₂ is a brown gas while N₂O₄ is colorless. If heating causes a brown color to persist, then this means that heating causes the reaction to shift backwards and produce NO₂. Therefore, the reaction must be exothermic.
7 0
3 years ago
24H2S + 16HNO3 3Sg+ 16NO + 32H2O
jeka94

Answer:

24 sultur with 48hydrogen+16 hydrogen,nitrogen and 48 oxygen+16 nitrogen,16 oxygen+62hydrogen and 32 oxygen

Explanation:

3 0
3 years ago
4. How would you calculate the poH of a base when given the<br><br> concentration of [OH]-?
Novay_Z [31]

Answer:

Use pOH = -log₁₀ [OH-]

Explanation:

pOH can be calculated from the concentration of hydroxide ions using the formular below:

pOH = -log₁₀ [OH-]

The pOH is the negative logarithm of the hydroxide ion concentration.

3 0
3 years ago
Other questions:
  • A student collected the data shown in the table below during an experiment.
    9·1 answer
  • Ammonia, NH3, can be made by reacting nitrogen and hydrogen and the equation is N2 + 3H2 --&gt; 2NH3 How many moles of NH3 can b
    5·1 answer
  • In caves, dripping groundwater containing calcium bicarbonate can form stalactites and stalagmites. When the water is exposed to
    8·1 answer
  • How can plants protect themselves? They produce salicylic acid. They become acidic. They release toxins. All of the above
    15·2 answers
  • Water molecules are ____________ because the hydrogen atoms are positively charged on one end and the oxygen atoms are negativel
    11·1 answer
  • A tiny drop of blood can provide DNA for DNA fingerprinting, although the analysis requires much more material than the blood sa
    12·1 answer
  • To find the number of protons, neutrons, and electrons in a particular atom, you must know the mass number and the atomic number
    9·1 answer
  • The number of elements in 2CH4
    14·1 answer
  • Cho 2.3 gam natri vào 100ml nước . Tính nồng độ dung dịch thu được ( C% )
    6·1 answer
  • The. bond dissociation enthalpies of the H-H bond and the H-Cl bond are 435 kJ mol^-1 and 431 kJ mol^-1, respectively. The ΔHfO
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!