General Chemistry Answers

1.    Classify the following as acid-base reaction or oxidation-reduction reaction (Identify the atoms that are oxidized and reduced, the change in the oxidation state for each)

a)    Na₂S(aq) + 2HCl(aq) ⟶ 2NaCl(aq) + H₂S(g)

b)    K₃P(s) + 2O₂(g) ⟶ K₃PO₄(s)

1.    Write the a) balanced molecular, b) complete ionic and c) net ionic equations for the following reaction.

Ca₃(PO₄)₂(aq) + H₃PO₄(aq) ⟶ Ca(H₂PO₄)₂(aq)

What is naphthalene balls solubility?

Calculate ksp Cul: 1.05 X10^-6M

if 134.5 g of 25.0 % sucrose solution was prepared

How many moles of HF are needed to react with 0.300 mol or Na2SiO3?

how many normal modes of vibration do you expect for carbon monoxide molecule calculate the force constant for carbon monoxide if this compound absorb at 2.143 x 10 m and its reduced mass in 1.139 x 10 kg

A standard Operating procedure for F6000 Thermolyne Furnace for the determination of Loss of ignition?

A sample of gas in a rigid container at -15 oC exerts a pressure of 500 mmHg. What temperature is needed to change the pressure to 950 mmHg?

Silver often extracted from ores such as K[AG(CN)2](aq)and recoverd by the reaction 2K[Ag(CN)2]+Zn(s)—2Ag(s)+Zn(CN)2(aq)+2KCN(aq) what mass of Zn(CN)2is produced