Other Chemistry Answers

The equilibrium constant for the reaction below has the value K a = 3.5 × 10–4. In this reaction the
Brønsted-Lowry acid is ________.
HF(aq) + H2O(l) ⇌ H3O+(aq) + F-(aq)

Express your answer as a chemical formula.

9. What is the maximum amount of ammonia formed when 14 gm of N2 is mixed with 2 gm of H2.

19. The formula of a hydrated salt of barium is BaCl2 ⋅ xH2O. If 1.936 g of this compound gives 1.846 g
of anhydrous BaSO4 upon treatment with H2SO4, calculate x.

27. What volume of 12.389 M concenterated solution of HCl is required to make 1.00 litre of 0.010 M
HCl?

Find the molality of H2SO4 solution whose specific gravity is 1.98 gm/ml and 90% by volume
H2SO4.

DEAR SIR
A pyrophoric substance is a substance that ignites spontaneously in air at or below 54.55 °C Examples are iron sulfide .can you explain me for example H2S HOW TO BURN WITH OUT SPARK? (CHEMICAL FORMULA OR MECHANISM)
BEST REGARDS
EDWARD

DEAR SIR
I HAVE AQUESTION ABOUT WATER CHEMISTRY.WHAT IS DIFFERENT BETWEEN TDS (TOTAL DISSOLVE SOLID)AND SALINITY?
BEST REGARDS
EDWARD

The particles of a solid diffuses with a liquid.... diffusion, acc 2 book means, the movment of the particles on their own... then u dont the particles of the solid diffuse with air????? i jst cant get y.. plzz help!!! and one more... wht is the difference betwn brownian motion and diffusion??

1) Discuss how are elements, compounds, neutrons, protons, atomic number ,mass number and isotopes are related under structure and bonding
(Information should include the interrelationship between the structure and bonding in elements all in detail)

The co-ordination no. of F- in CaF2 is :-
(1) 3 (2) 4 (3) 6 (4) 8