To answer this you need a roman numeral on gold to know the charge on it. Assuming it would be (I)... the formula would be KAu(CN)2
Yes. Since KCN is a salt of strong base and weak acid,its water solution will be basic.Therefore,0.1M KCN have pH greater than 7,its pH is 11.
because it exists as K+ and CN-
KCN is potassium cyanide.
Normally AgCN but not KCN is used to reduce free cyanide in the plating bath from CN- to Ag(CN)2- in order to prevent cyanide immersion forming. Addition AgCN make the bath chemical equilibrium more stable as accumulation of free cyanide. There is no reason why KCN is used (CM Lew, Malaysia).
differential.
The answer will depend on the quantity of KCN.
Since potassium cyanide (KCN) is highly poisonous, the addition of KCN to water might be caused by an intention to kill.
by subculture into non selective media such as soya broth or brain heart
KCN kills a human being in 0.5 second.
CuSO4 + KCN --->Cu(CN)2 + K2SO4
To answer this you need a roman numeral on gold to know the charge on it. Assuming it would be (I)... the formula would be KAu(CN)2
We can prepare KCN by the reaction of KOH and HCN.Where HCN can be generated by the pyrolysis of formamide.
Yes
KCN is a neutral solid salt (poison) but its aqueous solution is slightly basic.
Examples of poisonous salts: KCN, HgCl2, NaCN.
yes