Inorganic Chemistry Answers

calcuate the mass needed of Al to create 130 kg of Cr from Cr2O3

Substrate for beta carotene isomerase

1.       What volume of 0,250 mol⋅dm^–3 H₂SO₄ (sulfuric acid) will react with 42,4 cm³ of 1,50 mol⋅dm^-3 Na₂CO₃ (sodium carbonate)? (Hint: Write the balanced equation first.) 

Answer the following questions for

Ammine chloro bisethylenediammine cobalt(III) sulphate

a.formula

b.the coordination number

c.the possible geometry of the coordination compound

d.the correct hybridization for the metal ion,based on the valence bond theory

e.the magnetic behaviour of the central metal ion

Ammine chloro bisethylenediammine cobalt(III) sulfate

(NH4)(Ni(OH)4(NH3)2)

a.Systematic name or formula

b.the coordination number

c.the possible geometry of the coordination compound

d.the correct hybridization for the metal ion,based on the valence bond theory.

e.The magnetic behaviour of the central metal ion

What is the function of the acid catalyst in the first step of the fishcher esterification of a carboxylic acid

 Explain how increasing the concentration of the hydrochloric acid affects the rate of the reaction with magnesium.

• What mass of potassium bromate crystallizes on cooling 356 g of a saturated solution at 80 ° C to 20 ° C?      ​

100 g of water dissolve 34.0 g at 80 ° C and 7 g of salt at 20 ° C​

What is the pH of a solution prepared by adding 0.2g of Na2CO3 and 0.2g of NaHCO3 to water and bringing to a volume of 1liter? (pKa2=10.25)

What mass of HNO3 containing 10% W/W of acid will be required to dissolve 2.5g of CaCO3