Answer:
90.5g de NOCl en 2500 g de solución blanqueadora.
Explanation:
Una solución de concentración 3.62% en peso de hipoclorito en una solución blanqueadora contiene 3.62g de NOCl por cada 100g de solución. Con esta relación, podemos encontrar la masa de NOCl en 2500g de solución, así:
2500g de solución * (3.62g NOCl / 100g solución) =
<h3>90.5g de NOCl en 2500 g de solución blanqueadora.</h3>
Answer:
Significant figures are a measure of <u><em>precision</em></u>.
Explanation:
The significant figures of a number are those that have a real meaning and, therefore, provide some information. Therefore, the set of digits that are known with certainty in a measure are called significant figures and are the digits of a number considered non-null.
Any experimental measurement is inaccurate and must be expressed with its significant figures.
In this way, significant figures express the precision of a measuring tool.
Hypothesis is your opinion/ your thinking and yes, scientists have hypothesis before they do an experiment
Hope this helps!
The chemical formula is:
NiCO4
We see from the formula that there are 4 moles of Oxygen
(O) per 1 mole of Nickel (Ni). Therefore the moles of Oxygen in the sample is:
moles O = 9.55 moles Ni * (4 moles O / 1 mole Ni)
moles O = 38.2 moles O