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
suter [353]
3 years ago
10

10. How many moles of Ne are in a 0.50L tube at 200kPa and 50 °C? 11,60​

Chemistry
1 answer:
Nikolay [14]3 years ago
5 0

Answer:

0.04 mol Ne

General Formulas and Concepts:

<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>Chemistry</u>

<u>Gas Laws</u>

Combined Gas Law: PV = nRT

  • P is pressure (in kPa)
  • V is volume (in liters)
  • n is amount of moles
  • R is gas constant - \displaystyle 8.314 \frac{kPa \cdot L}{mol \cdot K}
  • T is temperature (in Kelvins)

Explanation:

<u>Step 1: Define</u>

P = 200 kPa

V = 0.50 L

T = 50°C

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

Temperature Conversion: K = °C + 273.15

<u>Step 3: Convert</u>

  1. Substitute <em>T </em>[TC]:                      K = 50°C = 273.15
  2. Add:                                           K = 323.15

<u>Step 4: Find Moles</u>

  1. Substitute [CBL]:                    \displaystyle (200 \ kPa)(0.50 \ L) = n(8.314 \frac{kPa \cdot L}{mol \cdot K} )(323.15 \ K)
  2. Multiply:                                                                                                             \displaystyle 100 \ kPa \cdot L = n(2686.67 \frac{kPa \cdot L}{mol})
  3. Isolate <em>n</em>:                                                                                                          \displaystyle 0.037221 \ mol = n_{Ne}
  4. Rewrite:                                                                                                            \displaystyle n_{Ne} = 0.037221 \ mol

<u>Step 5: Check</u>

<em>Follow sig fig rules and round. We are given 1 sig figs as our lowest.</em>

0.037221 mol Ne ≈ 0.04 mol Ne

You might be interested in
A certain weak acid, ha, has a ka value of 3.6×10−7. part a calculate the percent ionization of ha in a 0.10 m solution. express
slega [8]
Answer is: <span>the percent ionization is 0,19%.
</span>Chemical reaction: HA(aq) ⇄ H⁺(aq) + A⁻(aq).
Ka(HA) = 3,6·10⁻⁷.
c(HA) = 0,1 M.
[H⁺] = [A⁻] = x; equilibrium concentration.
[HA] = 0,1 M - x.
Ka = [H⁺] · [A⁻] / [HA].
0,00000036 = x² / 0,1 M - x.
Solve quadratic equation: x = 0,00019 M.
α = 0,00019 M ÷ 0,1 M · 100% = 0,19%.
8 0
3 years ago
Which water carries the most oxygen in streams and rivers?
lbvjy [14]

the answer is fresh water

8 0
3 years ago
How many seconds are in 5 hours
vfiekz [6]
18000 seconds = 5 hours
8 0
3 years ago
Read 2 more answers
What is a Spontaneous charge
ddd [48]

This means a release of free energy from the system corresponds to a negative change in free energy, but to a positive change for the surroundings.

3 0
3 years ago
Cl2 + 2OH− → Cl− + ClO− + H2O
Nataly_w [17]
Cl2(g) -------> Cl-(aq) + ClO-(aq) 

2e- + Cl2(g) -------> 2Cl-(aq) [reduction] 

4OH-(aq) + Cl2(g) -----------> 2ClO-(aq) + 2H2O(l) + 2e- [oxidation] 
______________________________________... 
2OH-(aq) + Cl2(g) --------> Cl-(aq) + ClO-(aq) + H2O(l)
4 0
3 years ago
Other questions:
  • What volume of 0.120 M HNO3(aq) is needed to completely neutralize 150.0 milliliters of 0.100 M NaOH(aq)?
    5·1 answer
  • When 5.175 g of lead are heated at 300 C the lead reacts with the oxygen in the air to
    14·2 answers
  • Two forces that are not equel in size are
    15·1 answer
  • Mixtures have (exact,relative) amounts of the same substances
    9·1 answer
  • How many grams of water will be produced if there are 3.5 miles of oxygen?
    8·1 answer
  • Given the atomic mass of select elements, calculate the molar mass of each salt. Element Molar mass (g/mol) Beryllium (Be) 9.012
    5·1 answer
  • What is the volume of 0.150 M sodium hydroxide, required to react completely with 250.0 mL of 0.545 M acetic acid, CH3COOH solut
    7·1 answer
  • Help im struggling frfr
    5·2 answers
  • Plzzzzzz help me Write electronic configuratof sodium and chlorine in the term of subshell ?
    14·2 answers
  • The density of lithium is 0. 546 g/cm3. what volume is occupied by 3. 66 x 10 23 atoms of lithium?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!