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
posledela
3 years ago
15

A student was given four unknown solutions. Each solution was checked for. conductivity and tested with. phenolphthalein. The re

sults are shown in the data table below
based on the data table which unknown solution could be 0.1 M NaOH
1.A. 2.B
3.C. 4.D
The table is that it talks about is in the picture attached

Chemistry
1 answer:
777dan777 [17]3 years ago
4 0

Answer: (3) C

Explanation:

You might be interested in
Which factor below does not affect how fast a solute dissolves in a solvent?
Anit [1.1K]
Stirring this is because the three elements are factors affecting dissolving of a solvent. Eg temprature affects in hotness or coldness, Particle size affects whether it is big or small while quantity of soluble affects by the amount
3 0
3 years ago
Read 2 more answers
Two compounds are standing at the same temperature. Compound "A" is evaporating more slowly than compound "
Tju [1.3M]
I believe the answer is compound B may have a lower molecular weight compared to compound A. 
At the same temperature, lighter particles of a compound have a higher average speeds than do heavier particles of another compound. Thus, particles of compound B are lighter than those of compound A and thus they have a higher average speed, hence evaporating faster compared to compound A.
4 0
3 years ago
Read 2 more answers
If 10.0 mL of a .600 M of HNO3 reacts with 31.0 mL of .700M Ba(OH)2 solution, what is the molarity of Ba(OH)2 after the reaction
Tasya [4]

Answer:

<u></u>

  • <u>0.456M</u>

Explanation:

<u>1. Balanced molecular equation</u>

     2HNO_3+Ba(OH)_2\rightarrow Ba(NO_3)_2+2H_2O

<u>2. Mole ratio</u>

     \dfrac{2molHNO_3}{1molBa(OH)_2}

<u>3. Moles of HNO₃</u>

  • Number of moles = Molarity × Volume in liters
  • n = 0.600M × 0.0100 liter = 0.00600 mol HNO₃

<u>4. Moles Ba(OH)₂</u>

  • n = 0.700M × 0.0310 liter = 0.0217 mol

<u>5. Limiting reactant</u>

Actual ratio:

   \dfrac{0.0600molHNO_3}{0.0217molBa(OH)_2}\approx0.28

Since the ratio of the moles of HNO₃ available to the moles of Ba(OH)₂ available is less than the theoretical mole ratio, HNO₃ is the limiting reactant.

Thus, 0.006 moles of HNO₃ will react completely with 0.003 moles of Ba(OH)₂ and 0.0217 - 0.003 = 0.0187 moles will be left over.

<u>6. Final molarity of Ba(OH)₂</u>

  • Molarity = number of moles / volume in liters
  • Molarity = 0.0187 mol / (0.0100 + 0.0031) liter = 0.456M
5 0
3 years ago
Find the velocity of a swimmer who swims exactly 220 m toward the shore in 72 s.
Aleksandr-060686 [28]

Answer: 3.06m/s

Explanation:

Distance covered by swimmer = 220 m

Time taken by swimmer = 72 s.

Velocity = ?

Recall that velocity is the rate of change of distance per unit time. it is measured in metres per second.

Velocity = Distance / time taken

Velocity = 220m / 72seconds

Velocity = 3.055 m/s (approximate to 3.06m/s)

5 0
3 years ago
This is a group 2 element that is called the alkaline earth metals. It burns with a very bright light
erica [24]

the alkaline eart metal s are

Beryllium

Magnesium

calcium

Strontium

barium


out of these Magnesium reacts with oxygen and produces bright light due to formation of MgO

all other metals also form oxides but the oxide of Mg is brightest

7 0
3 years ago
Other questions:
  • Which phrase best describes the path of a light wave ?
    15·1 answer
  • olivia bought new gym shoes to play volleyball because she kept slipping when she ran in her old shoes. how will the new soles h
    11·2 answers
  • What happens when atoms bond?
    9·1 answer
  • Many tall buildings have a
    9·1 answer
  • I will give brainliest if done well.
    5·1 answer
  • Where can I get a oxygen isotope analysis comercialy
    8·1 answer
  • How many molecules are in 6.00 mol He?<br> HELP!!!!!
    11·1 answer
  • Calculate the energy needed to raise the temperature of 165.0 g of water from 10.0°C to 40.0°C. The specific heat capacity for w
    11·1 answer
  • A solution is prepared by dissolving a
    5·2 answers
  • Explain why the available amount of water per person differs between countries
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!