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
adell [148]
3 years ago
12

Calculate the mass of sodium hydroxide needed to make a 5.00L with a molarity of 0.400M​

Chemistry
1 answer:
lana66690 [7]3 years ago
3 0

Answer:

79.994g NaOH

Explanation:

The formula for molarity is M=moles of solute/Liters of solution, M=n/L

You are given L and M, so 0.4=n/5

n (moles of solute) = 2

2 moles of NaOH, multiplied by the molar mass of NaOH (39.997) to get the mass needed: 79.994g

You might be interested in
Explain why igneous rocks do not contain fossils.
natta225 [31]
Fossils can not be formed in igneous rock because before it cooled from the liquid magma state, any renants of fossils would be destroyed and melted... they form in sedimentary because thats where they can be buried and perserved the easiest, metamorphic would destroy them from the pressures and temperatures involved in there formations
7 0
3 years ago
Read 2 more answers
Define all of the different changes of state and what the states they change to and form
Lubov Fominskaja [6]

Processes in which matter changes between liquid and solid states are freezing and melting. Processes in which matter changes between liquid and gaseous states are vaporization, evaporation, and condensation. Processes in which matter changes between solid and gaseous states are sublimation and deposition.

3 0
3 years ago
Read 2 more answers
Calculate the number of C atoms in 0.183 mol of C.
Alex Ar [27]

Answer: 1.10x10²³ atoms of C

110202600000000000000000 atoms C

Explanation:The solution process is shown below.

0.183 mole C x 6.022x10²³ atoms C / 1 mole C

= 1.10x10²³ atoms C

or 110202600000000000000000 atoms C

4 0
3 years ago
Why is it that when you have a strong acid and weak base your equivalence point is less than 7
yKpoI14uk [10]

Explanation:

When a strong acid, say HCl reacts which a weak base, say NH_3, the reaction is shown below as:-

\text{NH}_3 (\text{aq}) + \text{HCl} (\text{aq}) \rightarrow {\text{NH}_4^+}(\text{aq}) + \text{Cl}^-(\text{aq})

The salt further reacts with water as shown below:-

\text{NH}_4^+ + \text{H}_2\text{O} \rightarrow \text{H}_3\text{O}^+ + \text{NH}_3

Formation of \text{H}_3\text{O}^+ lowers the pH value of the solution as more hydrogen ions leads to less pH.

3 0
3 years ago
Holly has an unknown substance in a beaker. she wants to determine the relative ph of the unknown substance. she places a piece
AURORKA [14]

Blue litmus paper turns red in the presence of an acid. Therefore, it can be assumed that the substance in the beaker is an acid.

Acids have a pH level of less than 7. Consequently, it can be assumed that the substance has a pH level less than 7.

6 0
4 years ago
Read 2 more answers
Other questions:
  • 10.Conduction is the method of heat transfer in solids but not liquids and gases. Why?
    15·1 answer
  • A gas expands and does PV work on its surroundings equal to 344 J. At the same time, it absorbs 139 J of heat from the surroundi
    9·1 answer
  • Will reward brainliest<br> Explain why all arrhenius acids can be considered bronsted lowry acids
    8·1 answer
  • How do the atoms share electrons in molecule formation so that each atom appears to have a noble gas electron configuration?
    14·2 answers
  • Oxygen and ozone are allowed to come to equilibrium in the exothermic reaction 2O3(g) &lt;--&gt; 3O2(g) Which change will increa
    9·1 answer
  • El teatro existenciaslista q singnifica<br> maximo representante​
    15·1 answer
  • What is the pH of a 3.5 x 10-^6 M solution of HCl?
    5·1 answer
  • Need help ASAP!!!!!!
    6·1 answer
  • How many grams of sodium hydroxide, NaOH, are needed to make 355.0 mL of a 4.75M solution? The molar mass of NaOH is 40.00 g/mol
    7·1 answer
  • Which statement about gases is true?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!