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Sidana [21]
2 years ago
5

What is the correct formula for Tin (IV) chromate nonahydrate?

Chemistry
1 answer:
Mashcka [7]2 years ago
6 0

Answer:

Sn(CrO4)2 or Cr2O8Sn

Explanation:

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Which of the following solutes has the greatest effect on the colligative properties for a given mass of pure water? Explain.
Strike441 [17]

Answer:

Option a.

0.01 mol of CaCl₂ will have the greatest effect on the colligative properties, because it has the biggest i

Explanation:

To determine which of the solute is going to have a greatest effect on colligative properties we have to consider the Van't Hoff factor (i)

These are the colligative properties:

ΔP = P° . Xm . i  →  Lowering vapor pressure

ΔT = Kb . m . i  → Boiling point elevation

ΔT = Kf . m . i  →  Freezing point depression

π = M . R . T  →  Osmotic pressure

Van't Hoff factor are the numbers of ions dissolved in the solution. For nonelectrolytes, the i values 1.

CaCl₂ and KNO₃ are two ionic solutes. They dissociate as this:

CaCl₂  → Ca²⁺ + 2Cl⁻

We have 1 mol of Ca²⁺ and 2 chlorides, so 3 moles of ions → i = 3

KNO₃ → K⁺ + NO₃⁻

We have 1 mol of K⁺ and 1 mol of nitrate, so 2 moles of ions → i = 2

Option a, is the best.

8 0
2 years ago
A 25.0 g block of a metal alloy at 100 C is dropped into an insulated flask containing 110 g of ice; 5.30 g of the ice melted. W
mr_godi [17]

Answer:

0.00353J/g/°C

Explanation:

I will assume the temperature of the ice to be approximately 0°C.

Moreover, Heat of fusion of water is 6kJ

Amount of heat used to melt 5.3g of ice = 5.3 x 6 / 18

=1.767g°C

Therefore

1.767 = 25 x specific heat cap. x 200

Specific heat cap. = 1.767/(25x200)

= 0.00353J/g/°C

6 0
3 years ago
Write and balance the equation for the decomposition of aluminum chloride into its elements. phase symbols are optional.
lora16 [44]
The 3 and 2 to the right of the components are subscriptions.

7 0
2 years ago
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Which of the following terms refers to the area immediately around the eye
Anit [1.1K]

Answer:

the eye socket

Explanation:

the area around the eye is called the eye socket or the eye orbit.

5 0
3 years ago
A fusion reaction takes place between carbon and another element neutrons are released and a different element is formed the dif
Andreas93 [3]

A fusion reaction takes place between carbon and another element. Neutrons are released, and a different element is formed. The different element is Lighter than helium.

7 0
3 years ago
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