A) Suppose you are titrating vinegar, which is an acetic acid solution of unknown strength, with a sodium hydroxide solution according to the equation H C 2 H 3 O 2 + N a O H ⟶ H 2 O + N a C 2 H 3 O 2 H C 2 H 3 O 2 + N a O H ⟶ H 2 O + N a C 2 H 3 O 2 If you require 32.55 mL of 0.1094 M N a O H N a O H solution to titrate 10.0 mL of H C 2 H 3 O 2 H C 2 H 3 O 2 solution, what is the molar concentration of acetic acid in the vinegar? B) Calculate the mass percent of a vinegar solution with a total mass of 97.38 g that contains 2.27 g of acetic acid.
C) Suppose you are titrating a sulfuric acid solution of unknown concentration with a sodium hydroxide solution according to the equation
H2SO4+2NaOH⟶2H2O+Na2SO4H2SO4+2NaOH⟶ 2H2O+Na2SO4
If you require 26.71 mL of 0.980 M
NaOHNaOH solution to titrate 190.6 mL of H2SO4H2SO4 solution, what is the concentration of the
H2SO4H2SO4 solution?

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

girl imma just put my comment here because i need a couple point okurrttt

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.