According to Arrhenius theory an acid : is a compound that produces (H+) when in water. And it is said that one of the things against Arrhenius’s theory is :- e.g:- in HCl (g) + NH3 —-> NH4Cl (HCl) is not an Arrhenius acid , because there are no ions. What I don’t understand is […]
A nail driven into a board increases in temperature. if we assume that 60% of the kinetic energy delivered by a 2.10-kg hammer with a speed of 7.90 m/s is transformed into heat that flows into the nail and does not flow out, what is the temperature increase of an 8.00 g aluminum nail after […]
Discuss the Fire Codes and/or Regulations regarding flammable materials being attached to the walls in an educational occupancy such as a Pre-School, Elementary, Middle, and High School. Cite the specific State or Local regulations that are applicable to this condition.
Each hydrogen atom has one valence electron, but it needs two electrons to be stable. how can both hydrogen atoms each achieve a stable configuration
A pharmacist mixes 100 ml of 38% w/w hydrochloric acid with enough purified water to make 360 ml. if the specific gravity of hydrochloric acid is 1.20, calculate the percentage strength (w/v) of the resulting dilution.
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction caco3(s)→cao(s)+co2(g) how many grams of calcium carbonate are needed to produce 61.0 l of carbon dioxide at stp? express your answer numerically in grams?
What is the molarity of a 38.5% (v/v) aqueous ethanol solution? the density of ethanol (c2h6o, molar mass 46.07 g/mol) is 0.790 g/ml?
Hydrogen gas is produced when zinc reacts with sulfuric acid. zn(s) + h2so4(aq) → znso4(aq) + h2(g) if 157 ml of wet h2 is collected over water at 24°c and a barometric pressure of 740. torr, how many grams of zn have been consumed? (the vapor pressure of water is 22.38 torr at 24°c.)
Which salts will be more soluble in an acidic solution than in pure water? 1)PbSO4 2)KClO4 3)CuBr 4)BaSO3 5)Ni(OH)2 There is more than one correct answer Thanks in advance 🙂
Hi, I attached a basic Chemical engineering homework, please send me handshake after checking the howework and being able to solve it propley on time. * some homework asks for labeling so do not for get to label * it might not be obvious on the picture
