45 g Thirty grams of lead oxide and fifteen grams of ammonia react completely to produce solid lead, nitrogen gas, and liquid water.
5.2e+26is it this? im not sure
The pipette that accurately measures 0.8mL of fluid is P1000 micropipette.
It is given that:-
The volume of fluid = 0.8mL
We know that,
1 mL = 1000 microliter.
Hence,
0.8 mL = 0.8*1000 microliter = 800 microliter
We know that, a P1000 micropipette's volume ranges between 200 microliter to 1000 micro liter.
As,
200 < 800 < 100
Hence, P1000 micropipette is the right instrument.
The accuracy of this pipette decreases as volume decreases. Since the value 800 is near the maximum volume 1000 of the pipette, the accuracy of the pipette will be within a few percentages of the actual value.
To learn more about pipette, here:-
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Above it says the molecular weights are
NH3- 17g/mol and SF6-146 g/mol
Well 1 mole of SF6 is 146.048 grams (i added hte atomic masses of each element). So then the number of moles in 0.85 grams would be 0.00582000438 moles.
<span><span><span>= 1mole / </span><span>146.048g *</span></span> 0.85g</span>
so we would need 0.00582000438 moles of NH3 to have the same number of molecules.
One mole of NH3 is 17.030519999989988 grams (i added each atoms mass). so 0.00582000438 moles of NH3 would be:
<span><span><span>= 17.030519999989988 g / </span><span>mole * </span></span>0.00582000438moles</span>
that equals 0.09911770099 grams.
so 0.09911770099 grams is the answer if you round that you get about 0.1 grams