The difference between the initial mass (1.04 g) and the final mass (0.61g) is the mass of water present in the sample:
1.04 g - 0.61 g = 0.43 g
Divide by the molar mass of water: 18.01 g / mol to obtain the number of moles of water:
0.43 g / 18.01 g / mol = 0.0239 moles
Calculate the number of moles of dehydrated NiSO4
Number of moles = mass in grams / molar mass
molar mass of NiSO4 = 154.75 g/mol
number of moles NiSO4 = 0.61 g / 154.75 g/mol = 0.00394 moles
Now determine the molar ratio water to NiSO4: 0.0239 / 0.00394 = 6.07 ≈ 6
Then, the formula of the hydrate product is NiSO4 · 6 H2O.
Use the prefix hexa (6) to name the compound: Nickel(II) sulfate hexadydrate
Answer:
C) It moves faster and collects more data
Explanation:
The coordination number of cobalt in the complex is 6.
What is coordination compound?
The number of ligands attach to the central metal atom or ion in coordination sphere is coordination number.
In given complex 5 NH3 and 1 chlorine is attached in coordination sphere, so coordination number is 6.
To know more about the coordination number please follow the link:
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