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
lakkis [162]
3 years ago
10

1) How many atoms are in 0.54 moles of Cu? show work ​

Chemistry
1 answer:
mario62 [17]3 years ago
7 0
<h3>Answer:</h3>

3.3 × 10²³ atoms Cu

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Moles
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[Given] 0.54 moles Cu

[Solve] atoms Cu

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

Avogadro's Number

<u>Step 3: Convert</u>

  1. [DA] Set up:                                                                                                      \displaystyle 0.54 \ mol \ Cu(\frac{6.022 \cdot 10^{23} \ atoms \ Cu}{1 \ mol \ Cu})
  2. [DA] Multiply [Cancel out units]:                                                                     \displaystyle 3.25188 \cdot 10^{23} \ atoms \ Cu

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

3.25188 × 10²³ atoms Cu ≈ 3.3 × 10²³ atoms Cu

You might be interested in
A 0.0100 M solution of AgNO3 has a concentration of Ag ion equivalent to
qaws [65]

Answer:

0.0100M of AgNO3 contains 0.0100M of Ag+

Explanation:

AgNO3 when ionized yields Ag+ and NO3-. This means that the amount of AgNO3 in solution is equivalent to the amount of Ag+ and NO3- in that same solution.

1M of AgNO3 solution produces 1M of Ag+  

1M of AgNO3 solution produces 1M of NO3-

This occurs because of the complete ionization of AgNO3 in solution, allowing complete dissolution of the compound.

6 0
3 years ago
Please I need help with Chemistry ! Questions in attachment, I'LL GIVE THE BRAINLEST AND POINTS ! I need it soon !!
ludmilkaskok [199]

Answer:

1)

A) Bromine

B) Lithium

C) Calcium

D) Sodium

E) Actinium

2)

Carbon: 60

Magnesium 24 times

bromine is 14 times

3)

24 times

8/3 times

4)

Hydrogen

Helium

5)

Explanation:

7 0
3 years ago
Xco3 enter the group number of x
Mademuasel [1]

We know that C has a formal charge of +4 while each O element has a formal charge of -2, therefore the formal charge of X is:

X + 2 – 2 * 3 = 0

X + 2 – 6 = 0

X = 4

<span>So X has a group number of 4.</span>

4 0
3 years ago
If a body of water has high turbidity levels, what can most likely be concluded?
harina [27]
Unsafe to dono because it’s way too high
6 0
3 years ago
How many protons and electrons do the following ion have?
GalinKa [24]

a) Number of protons = number of electron in the atom = atomic number

So it has 7 protons answer

N-3 has gained 3 electron so number of electrons + 7+3

= 10 answer

8 0
4 years ago
Other questions:
  • What kind of weather does a cold front usually bring? A. Warm c. Sunny b. Stormy d. Windy Please select the best answer from the
    8·1 answer
  • True or False, A structural formula shows the arrangement of the atoms in a molecule.
    5·1 answer
  • If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the
    14·1 answer
  • how many grams of calcium chloride can be prepared from 60.4 G of calcium oxide and 69.0 G of hydrochloric acid and a double dis
    7·1 answer
  • The conversion factor between mass and moles for a compound is the molar mass. true false
    10·1 answer
  • How many moles of water molecules, h2o, are present in a 27 gram sample of water?
    8·2 answers
  • What about solids ? Do solids move around like liquids and gases ?​
    7·1 answer
  • Sodium hydroxide solution reacts with copper (II) nitrate solution to produce a
    10·1 answer
  • Arrange these species in the order of increasing size:
    5·1 answer
  • What do you notice about the Total<br> height lost in each set of trials?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!