pH of KNO3 in water? - The Student Room
Hi guys, I'm trying to find out what would be the pH of potassium nitrate dissolved in water? I know that the equation is: KNO3 + H2O -> HNO3 + KOH Lets say im going to take some …
Is this correct?? :S AS CHEMISTRY HELP - The Student Room
oh yeah, you balanced it alright, well almost, it's NaOH + HNO3 -> NaNO3 + H2O. Yeah, you see, you already worked out the concentration right? So now you can see that you can work out …
balanced equation of the thermal decomposition of KNO3
Why have you put a 2 after the NO3? Its just KNO3, and the thermal decomposition of a nitrate makes a metal oxide, oxygen and nitrogen...
Redox Titration help - The Student Room
2015年11月7日 · 5 (COOH)2 + 2 KMnO4 + 3 H2SO4 = 10 CO2 + 2 MnSO4 + K2SO4 + 8 H2O 5 : 2 : 3 : 10 : 2 : 1 : 8 4) Calculate how many moles of KMnO4 are present in the average volume …
Chemistry higher exam question - The Student Room
Very stuck on this question and would love some help! A student wanted to make 11.0 g of copper chloride. The equation for the reaction is: CuCO3 + 2HCl → CuCl2 + H2O + CO2 Relative …
Tough AQA A Level question - The Student Room
2018年4月9日 · This question is about compounds containing ethanedioate ions. A white solid is a mixture of sodium ethanedioate (Na2C2O4), ethanedioic acid dihydrate (H2C2O4.2H2O) and …
Why is H20 not symmetrical? - The Student Room
Why are water molecules not symmetrical? is it because of the lone pairs?because im sure if you get a mirror and put it half way through a 2D water molecule diagram, youl will get the same …
AQA A-level Chemistry Inorganic - The Student Room
The halide ions have distinct reactions with sulfuric acid. Please note I haven't dealt with the stoichiometery but if you want it let me know. A) For the chloride ion reacting with sulfuric acid, …
A-Level Group 7 Chemistry help - The Student Room
2024年4月1日 · Hi I’m stuck on this question on Group 7 Chemistry: In acidic solution, IO3- ions oxidise iodide ions to iodine. IO3- + 5I- + 6H+ → 3I2 + 3H2O Give a half-equation for the …
Formula of hydrocarbon from combustion reaction - The Student …
2024年6月11日 · 10 cm3 of a gaseous hydrocarbon, CxHy, was mixed with excess oxygen and ignited. The total gas volume was measured at room temperature and pressure before and …