A student uses gravimetric determination to find the water of hydration of a hydrated sample of cobalt (II) sulfate. The student’s sample contained 0.0098459 moles of anhydrous cobalt(II) sulfate (CoSO4) and 0.068921 moles of water (H2O). What is the formula of the cobalt(II) sulfate hydrate? (1 point)

CoSO₄.7H₂O

Explanation:

Some salts are in its hydrate form to stabilize them. The hydrated form of CoSO₄ is:

CoSO₄.XH₂O

To find the hydration of the COSO₄ you must find the ratio of H₂O and CoSO₄ that is:

0.068921 moles H₂O / 0.0098459 moles CoSO₄ = 7

That means you have 7 moles of water per mol of CoSO₄ and the formula is:

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.