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
Alexus [3.1K]
2 years ago
11

What is the mass of 2.23 x 1023 atoms of sulfur?

Chemistry
1 answer:
Minchanka [31]2 years ago
5 0

Answer:

11.9 g S

General Formulas and Concepts:

<u>Chem</u>

  • Reading a Periodic Table
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
  • Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

2.23 × 10²³ atoms S

<u>Step 2: Define conversions</u>

Avogadro's Number

Molar Mass of S - 32.07 g/mol

<u>Step 3: Dimensional Analysis</u>

<u />2.23 \cdot 10^{23} \ atoms \ S(\frac{1 \ mol \ S}{6.022 \cdot 10^{23} \ atoms \ S} )(\frac{32.07 \ g \ S}{1 \ mol \ S} ) = 11.8758 g S

<u>Step 4: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules.</em>

11.8758 g S ≈ 11.9 g S

You might be interested in
The following information is to be used for the next 2 questions. In order to analyze for Mg and Ca, a 24-hour urine sample was
Ainat [17]

Answer:

Explanation:

From the given information:

The concentration of metal ions are:

[Ca^{2+}]= \dfrac{0.003474 \ M \times 20.49 \ mL}{10.0 \ mL}

[Ca^{2+}]=0.007118 \ M

[Mg^2+] = \dfrac{0.003474 \ M\times (26.23  - 20.49 )mL}{10.0 \ mL}

=0.001994 \ M

Mass of Ca²⁺ in 2.00 L urine sample is:

= 2.00 L \times 0.001994 \dfrac{mol}{L} \times \dfrac{40.08 \ g}{1 \ mol}

= 0.1598 g

Mass of Ca²⁺ = 159.0 mg

Mass of Mg²⁺ in 2.00 L urine sample is:

= 2.00 L \times 0.007118 \dfrac{mol}{L} \times \dfrac{24.31 \ g}{1 \ mol}

= 0.3461 g

Mass of Mg²⁺ = 346.1 mg

5 0
3 years ago
SCIENCE<br> why is it important to distinguish the two types of crust?
Yuri [45]

Answer:

It is important to identify it because the two types of crust are made up of two different types of rock

Explanation:

Hope i helped you

4 0
2 years ago
Read 2 more answers
What is the stoichiometric coefficient for oxygen when the following equation is balanced using the lowest whole-number coeffici
rodikova [14]

Answer:

Option (B) 7

Explanation:

C3H6O2(l) + O2(g) → CO2(g) + H2O(l)

To know the coefficient of O2 in the above equation, let us balance the equation.

The above equation can be balance as follow:

C3H6O2(l) + O2(g) → CO2(g) + H2O(l)

There are 3 atoms of C on the left side and 1 atom on the right side. It can be balance by putting 3 in front of CO2 as shown below:

C3H6O2(l) + O2(g) → 3CO2(g) + H2O(l)

There are 6 atoms of H on the left side and 2 atoms on the right side. It can be balance by putting 3 in front of H2O as shown below:

C3H6O2(l) + O2(g) → 3CO2(g) + 3H2O(l)

There are a total of 4 atoms of O on the left side and a total of 9 atoms on the right side. It can be balance by putting 7/2 in front of O2 as show below:

C3H6O2(l) + 7/2O2(g) → 3CO2(g) + 3H2O(l)

Multiply through by 2

2C3H6O2(l) + 7O2(g) → 6CO2(g) + 6H2O(l)

Now, the equation is balanced.

From the balanced equation above, the coefficient of O2 is 7.

7 0
3 years ago
A child with cystic fibrosis has a mutated protein in his cells which does not behave normally. The mutated protein stops chlori
Helen [10]

Answer:

Explanation:

lung air ways the mucus will clog it up causing asthma hope this helped :P

6 0
3 years ago
The ion p3− has _____ protons and _____ electrons. enter your answers as integers separated by a comma.'
katrin2010 [14]

The symbol P is for phosphorus having atomic number 15. That means it has 15 protons and 15 electrons in its neutral state.

The given symbol P^{3-} has a -3 charge that means it has gained 3 electrons so, the number of electrons in the P^{3-} is: 15+3 = 18. The number of protons will remain same that is the number of protons = 15.

So, the ion P^{3-} has 15 protons and 18 electrons that gives 15-18=-3 charge on the P^{3-} ion.

So, the answer is 15 , 18.

7 0
3 years ago
Other questions:
  • Which statement is true regarding a titration? It measures the amount of heat given off in combustion reactions. It determines h
    12·2 answers
  • For each element, predict where the "jump " occurs for successive ionization energies. (For example, does the jump occur between
    5·1 answer
  • Identify the type of atom that generally forms covalent bonds
    7·1 answer
  • What is the empirical formula of C6H18O3?<br><br> CH3O<br> C2H5O<br> C2H6O<br> C2H5O5
    12·2 answers
  • Sodium aton has lower electron affinity than chlorine atom why
    5·1 answer
  • 3. Dorji was provided with four colourless solutions. He was asked to
    13·1 answer
  • The temperature of a container of oxygen gas is increased from 149 k to 298 k which of the following statement is true
    14·1 answer
  • Which of the following elements would form the smallest ionic radius and why?
    15·1 answer
  • Please help thank you (15 points)
    8·1 answer
  • How many moles are there in 1 mole of argon?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!