How many moles of iron (II) ammonium sulfate hexahydrate reactant are needed to prepare 7.74 g of potassium tris oxalato ferrate trihydrate product if the molar ratio is 1:17 Use the balanced reactions and information provided to below. Answer using the correct number of significant figures and do not include units in your answer.
1. Fe(NH.)2(SO2)2 6H2O(s) + H, C,0, (aq) → FeC20, 2H,0 (8) + (NH),SO. (aq) + H2SO (aq) + 4H2O(1)
2. 2 FeC20, 2H,0 (s) + H, C,04 (aq) + H2O2 (aq) + 3 K, C,04 (aq)- 2 K [Fe(C20.)31 3H,0 (5)

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a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.