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
satela [25.4K]
2 years ago
11

If the concentration of a KCl solution is 16.0% (m/v), then the mass of KCl in 26.0 mL of solution is ________.

Chemistry
1 answer:
melomori [17]2 years ago
3 0

Answer:

The correct answer is 4.16 grams.

Explanation:

Based on the given information, the concentration of KCl solution is 16 % m/v, which means that 100 ml of the solution will contain 16 grams of KCl.

The molarity of the solution can be determined by using the formula,

M = weight/molecular mass × 1000/Volume

The molecular mass of KCl is 74.6 grams per mole.

M = 16/74.6 × 1000/100

M = 16/74.6

M = 2.14 M

Now the weight of KCl present in the solution of 26 ml will be,

2.14 = Wt./74.6 × 1000 /26

Wt. = 4.16 grams

You might be interested in
What is the electron dot structure of AsClBr2? Pls pls pls help me
pogonyaev

Answer:

Explanation:

Sorry, I don't really know about this. I hope it helps!

3 0
3 years ago
What is the net ionic equation of the reaction of MgSO4 with Pb(NO3)2? Express you answer as a chemical equation including phase
Nady [450]

Answer : The net ionic equation will be,

Pb^{2+}(aq)+SO_4^{2-}(aq)\rightarrow PbSO_4(s)

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The same number of ions present on reactant and product side which do not participate in a reactions.

The given balanced ionic equation will be,

MgSO_4(aq)+Pb(NO_3)_2(aq)\rightarrow Mg(NO_3)_2(aq)+PbSO_4(s)

The ionic equation in separated aqueous solution will be,

Mg^{2+}(aq)+SO_4^{2-}(aq)+Pb^{2+}(aq)+2NO^{3-}(aq)\rightarrow PbSO_4(s)+Mg^{2+}(aq)+2NO^{3-}(aq)

In this equation, Mg^{2+}\text{ and }NO_3^- are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

Pb^{2+}(aq)+SO_4^{2-}(aq)\rightarrow PbSO_4(s)

4 0
3 years ago
which of the following will stay consant, no matter if the substance is in the solid, liquid, or gas state​
777dan777 [17]

Answer:

chemical composition

Explanation:

changes into any state of matter are physical and thus the chemical composition of the matter is unaltered

8 0
3 years ago
Explain obser made when flourine is bubbled in bromine water for sometime
lisabon 2012 [21]

Explanation:

Alkenes react in the cold with pure liquid bromine, or with a solution of bromine in an organic solvent like tetrachloromethane. The double bond breaks, and a bromine atom becomes attached to each carbon. The bromine loses its original red-brown color to give a colorless liquid. In the case of the reaction with ethene, 1,2-dibromoethane is formed.

5 0
3 years ago
What happens to the rate of reaction when you decrease the temperature of a chemical reaction?
Neporo4naja [7]
Depending on what chemicals you use it slows the reaction
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which statements about viscosity are true? (i) viscosity increases as temperature decreases. (ii) viscosity increases as molecul
    8·2 answers
  • The strength of the bond holding atoms together determines the hardness of a mineral. which has stronger bonds, your fingernail
    15·1 answer
  • Imagine if you are given a mystery element
    5·1 answer
  • Is a nusleus in a cell
    6·1 answer
  • Several properties of the element magnesium are shown. Which one is a chemical property?
    7·1 answer
  • A single atom of an element has 11. protons, 11. electrons, and 12 neutrons. Which element is it?
    13·2 answers
  • If 16 mol of oxygen were reacted with excess hydrogen gas, how many moles of water would be produced?
    15·2 answers
  • Hello can you please help me to solve above questions. .​
    13·1 answer
  • Which two properties of an object are directly related to its thermal energy?
    10·2 answers
  • The formula for a lutetium carbonate compound is Lu2(CO3)3. What would be the formula for a lutetium nitrate compound given that
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!