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
LUCKY_DIMON [66]
3 years ago
7

CHEM

Chemistry
2 answers:
castortr0y [4]3 years ago
3 0
Molarity = moles / liter

a) M = 2/4 = 0.5 M

b) Moles = 4/(30 + 16 + 1)
= 0.085
M = 0.085 / 2 = 0.0425 M

c) Moles = 5.85 / (23 + 35.5)
= 0.1
M = 0.1 / 0.4
= 0.25 M
Dmitrij [34]3 years ago
3 0
Molarity =moles of solute /volume of solution. A.) Molarity of glucose =moles of glucose /volume of solution =2/4 = 0.5 M B.) No of moles of KOH= weight of KOH / molecular weight of KOH = 4/ 56.10 =0.07 moles. Therefore, Molarity of KOH =moles of KOH /volume of solution = 0.07/2 = 0.035M. C.) No of moles of NaCl = weight of NaCl/ molecular weight of NaCl = 5.85/58.5 = 0.1moles. Therefore, Molarity of NaCl = moles of NaCl /volume of solution = 0.1/ 400 x 10^-3 = 0.25M
You might be interested in
Why is it illegal to manufacture fireworks without a license
victus00 [196]

Illegal Explosives. Illegal explosives associated with the fireworks season are inherently dangerous because of their composition and unpredictability. Homemade explosives can pose a particular risk for injury because the people making them often lack knowledge and experience in manufacturing fireworks.

3 0
3 years ago
How to turn form moles to grams​
miss Akunina [59]
Turning things to gram so need to convert to the metric system
5 0
3 years ago
Read 2 more answers
if the density of a bar of gold is 19.3g/cm^3and you cut it into four pieces , what is its density of each piece of gold
AlladinOne [14]
Density is an intrinsic property, so it is independent of the amount of substance present: one gold coin would have the same density as a solid gold boulder.

So if the density of gold is 19.3 g/cm³, the density of a bar of gold and the pieces into which the bar is cut would all be 19.3 g/cm³.
4 0
3 years ago
What happens in nuclear fusion?
vfiekz [6]
The answer is B particles combine into a large amount of engery.
5 0
3 years ago
Read 2 more answers
Which color of visible light has the highest energy?
DanielleElmas [232]

Answer:

Blue: Because violet really has the most and blue is based on violet!

Explanation:

Hope this helps! Plz mark as brainliest!

4 0
3 years ago
Other questions:
  • By which process are rocks broken up and moved to different locations
    15·2 answers
  • What the answer can y’all hell me
    14·1 answer
  • Draw a mechanism for the reaction of the aldehyde with hydronium ion. In the first box, draw any necessary curved arrows. Show t
    11·1 answer
  • WILL GIVE BRAINLYEST!!!!!The number at the bottom of Silicon on the periodic table is 28.086. This number is the element's _____
    14·2 answers
  • A hydrogen atom in an excited state can be ionized with less energy than when it is in its ground state. What is n for a hydroge
    13·1 answer
  • 65 g of NaOH is dissolved to make 500 mL of solution. Find moles of NaPH and Molarity of solution.
    10·1 answer
  • Join it and crack it do zooooooom​75386896860 password d6uNML
    15·1 answer
  • 63.15 mL of calcium hydroxide is required to titrate 18.9 mL of a 0.200 M H3PO4 solution. What is the molarity of the basic solu
    8·1 answer
  • Pls help fast answer​
    8·2 answers
  • What is neutralization reaction?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!