To solve this we use the equation,
M1V1 = M2V2
where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.
1.75 M x V1 = 0.100 M x 2.0 L
V1 = -.11 L
Answer : The volume of stock solution is, 0.114 L
Solution :
According to the dilution law,
where,
= molarity of solution = 0.100 M
= volume of solution = 2.00 L
= molarity of stock solution = 1.75 M
= volume of stock solution = ?
Now put all the given values in the above law, we get the volume of stock solution.
Therefore, the volume of stock solution is, 0.114 L
Answer:
Need a control group.
Explanation: Without a control group you would not be able to interpret the results correctly.
Identify both types of bonds in the NH4NO3(s).
(2) C3H8(g) + 5 O2(g)--> 3 CO2(g) + 4 H2O(l)
(3) Zn(s) + 2 HCl(aq)--> ZnCl2(aq) + H2(g)
(4) BaCl2(aq) + Na2SO4(aq) --> BaSO4(s) + 2 NaCl(aq)
Answer : The correct option is, (1)
Explanation :
According to the Arrhenius acid-base concept,
Arrhenius acid is a species that produces ion in an aqueous solution and Arrhenius base is a species that produces ion in an aqueous solution.
From the given options, option 1 chemical equation represents the reaction of an Arrhenius acid and an Arrhenius base. In this reaction, produces ion in an aqueous solution and act as an Arrhenius acid, produces ion in an aqueous solution and act as an Arrhenius base.
While the other options does not represents the reaction of an Arrhenius acid and an Arrhenius base.
Reaction 2 is an example of combustion reaction.
Reaction 3 is an example of single-displacement reaction.
Reaction 4 is an example of double-displacement reaction.
Hence, the correct option is, (1)