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
LenaWriter [7]
3 years ago
5

How many moles are in 20 grams of sodium

Chemistry
1 answer:
tatyana61 [14]3 years ago
7 0
0.869952156982 to be precise
You might be interested in
Determine the pH of a 5x10^-4 M solution of Ca(OH)2
miss Akunina [59]
Ca(OH)₂ ==> Ca²⁺ + 2 OH<span>-   

Ca(OH)</span>₂ is <span>strong Bases</span><span>

</span>Therefore,  the [OH-] equals 5 x 10⁻⁴ M. For every Ca(OH)₂ you produce 2 OH⁻<span>.
</span>
pOH = - log[ OH⁻]

pOH = - log [ <span>5 x 10⁻⁴ ]

pOH = 3.30

pH + pOH = 14

pH + 3.30 = 14

pH = 14 - 3.30

pH = 10.7

hope this helps!</span>
5 0
3 years ago
Which two elements make up the greatest percentages by mass in Earth’s crust?
yuradex [85]
<h2><u>Answer</u> :</h2>

The most appropriate option is :

\hookrightarrow \bf2. \:  \mathrm{ \underline{oxygen \:  \: and \:  \: silicon}}

Since, they are the most abundant elements found in Earth's Crust.

  • Oxygen (46%)

  • Silicon (28%)

\circ  { \underline{ \boxed{ \sf{ \color{green}{ \mathrm{hope \:  \: it \:  \: helps \:  \: you .....}}}}}}∘

4 0
2 years ago
Which of these two statements meets the criteria of a
motikmotik
Hypothesis is a prediction made therefore it is a
4 0
3 years ago
The amount of oxygen bound to hemoglobin _____.
Luba_88 [7]
The amount of oxygen bound to hemoglobin is 98.5% 
7 0
3 years ago
Read 2 more answers
74.5 g of KCl was dissolved in 1000. mL of water. What is the
Degger [83]
Hdhdhdhxhxuxbxuxbdhudhx
3 0
3 years ago
Read 2 more answers
Other questions:
  • Is camphor heated a physical/chemical change​
    12·1 answer
  • Find the standard enthalpy of formation of ethylene, C2H4(g), given the following data: C2H4(g) + 3 O2(g) --&gt; 2CO2(g) + 2 H2O
    8·1 answer
  • What is the most useful tool used by chemist?
    8·1 answer
  • Which is the term for an ion that has more protons than electrons
    6·1 answer
  • Write and balance the chemical equation that represents the reaction of aqueous sulfuric acid with aqueous sodium hydroxide to f
    9·1 answer
  • An oxide of phosphorus contains 56.4% phosphorus and 43.6% oxygen. It's relative molecular mass is 220. Find both the empirical
    14·2 answers
  • R4te me for 10 points and be honest with me PLEASE
    13·2 answers
  • How can you tell if a chemical is an ionic bond?
    7·1 answer
  • What displays the number of atoms, nature and bond types in organic compounds​
    7·1 answer
  • How many moles of sodium sulfate will be formed if you start with 2.00 moles of sodium
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!