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
Juli2301 [7.4K]
3 years ago
11

What does initial buret and final buret reading mean

Chemistry
1 answer:
ikadub [295]3 years ago
4 0
Initial buret reading means the volume of acid taken in the buret and final reading means the remaining volume of acid after experiment
 
You might be interested in
Sam believes the rock is more denser than the pencil. He measured the mass of the rock to be 8.5 grams and volume to be 4.5mL. H
mezya [45]

Answer:

Rock

Explanation:

Let's calculate the density of each object:

Rock:

Density = \frac{mass}{volume}=\frac{8.5\ g}{4.5\ mL}=1.9\ g/mL

Pencil:

Density = \frac{mass}{volume}=\frac{2.4\ g}{4.5\ mL}=0.53\ g/mL

Therefore the rock is denser.

6 0
2 years ago
What volume of 0.194 MNa3PO4 solution is necessary to completely react with 85.5 mL of 0.109 MCuCl2 ?
ira [324]

Answer:

35.9 ml

Explanation:

Start with the balanced equation:

3CuCl2(aq)+2Na3PO4(aq)→Cu3(PO4)2(s)+6NaCl(aq)

This tells us that 3 moles of CuCI2 react with 2 moles Na3PO4-

∴  1 mole CuCl2 will react with 2/3 moles Na3PO4

We know that concentration = moles/volume i.e:

c= n/v

∴n=c×v

∴nCuCl2=0.107×91.01000=9.737×10−3

I divided by 1000 to convert ml to L

∴nNa3PO4=9.737×10−3×23=6.491×10−3

v=nc=6.491×10−30.181=35.86×10−3L

∴v=35.86ml

4 0
2 years ago
Organisms reproduce by two main methods. One is division, in which the animal divides and creates an exact copy of itself. What
uysha [10]
Division (asexual) method, and the sexual method of reproduction where two organisms produce an offspring. The sexual reproduction requires the interaction of two organisms; gametes, typically a fertilization. The offspring consists of characteristics derived from both of the parental organisms.
4 0
3 years ago
How many moles are in 25 grams of dihydrogen monoxide
timurjin [86]
If you'd like the full working, here it is:

I calculated this by using the formula triangle.

Mass

Number Formula
Of moles Mass

To calculate the number if moles in a substance, you need to divide the Mass by the Formula mass. You get the formula mass by adding the atomic masses of the elements in the compound together. In this situation, H2O, it would be two hydrogen molecules plus one oxygen molecule which is 2 + 16. This is because the atomic mass of Hydrogen is 1 and the atomic mass of Oxygen is 16.

Now that we have the Formula mass we can go ahead and do the calculation since we already have the Mass. You do as follows:

Mass divided by Formula mass which is in this case - 25 divided by 18

By doing this calculation you will get the answer which is 1.38 moles which can be rounded to 1.4

Hope this helps :)
6 0
3 years ago
Read 2 more answers
Which organelle is the control center of the cell?
Ivenika [448]

Answer:

nucleus

Explanation:

6 0
3 years ago
Other questions:
  • What substance is present in a solution consisting solely of electrolytes?
    14·1 answer
  • *WILL GIVE BRAINLIEST IF SOMEONE ANSWERS THIS CORRECTLY ASAP!!!!*
    5·2 answers
  • Write the equation for a rn-224 atom undergoing 1 beta decay: what is the daughter?
    5·1 answer
  • What mass of CO2 can be produced from the decomposition of 4.8 moles of Fe2(CO3)3?
    15·1 answer
  • A solution is prepared by dissolving 27.0 g of urea [(NH2)2CO], in 150.0 g of water. Calculate the boiling point of the solution
    8·1 answer
  • Calculate the density of oxygen,
    6·1 answer
  • A student measures the mass of a sample of a metallic element, M. Then the student heats the sample in air, where it completely
    12·1 answer
  • What is the half-life of Technetium-99 if a 200 gram sample decays to 50 grams in 639,000 years?
    5·1 answer
  • Calculate the atoms of hydrogen in 52.0 g of H2O.
    12·1 answer
  • Which of the following is an example of erosion. A. Cold temperatures freeze the surface of a pond. B. During a drought a pond
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!