What is the Correct Concentration of Sr2+ in a Saturated SrSO4 Solution?

In summary, the question asks for the concentration of [Sr2+] in a saturated solution of SrSO4 with a [SO42-] of 1.0x10-4M. The answer is not explicitly stated, but can be calculated using the Ksp value. The options given are A. 3.4x10-3M, B. 5.8x10-4M, C. 1.0x10-4M, and D. 3.4x10-7M, with the correct answer being A.
  • #1
Jimbo57
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Homework Statement


A saturated solution of SrSO4 has a [SO42-] of 1.0x10-4M. What is the [Sr2+]?

A. 3.4x10-3M
B. 5.8x10-4M
C. 1.0x10-4M
D. 3.4x10-7M

Homework Equations





The Attempt at a Solution



It's a multiple choice practice test and the answer key tells me that A is the answer. When I look at the question, the strontium and sulphate have a 1:1 molar ratio so wouldn't the answer be C? Is this a mistake or am I missing something?
 
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  • #2
Saturated solution doesn't have to be produced by putting SrSO4 in water, it can be produced by other means (like dropping some SrSO4 into sulfuirc acid). Then concentration of Sr2+ needs to be calculated from Ksp. I guess you were given Ksp somewhere else. But I agree question is ambiguous.
 
  • #3
Thanks for the help Borek! Turns out they forgot to supply the ksp value.
 

FAQ: What is the Correct Concentration of Sr2+ in a Saturated SrSO4 Solution?

What does "SrSO4 Concentration Q" mean?

"SrSO4 Concentration Q" is a common term used in scientific research to refer to the concentration of strontium sulfate (SrSO4) in a solution. It is typically expressed in units of moles per liter (M) or milligrams per liter (mg/L). In this case, the concentration is 3.4x10-3M, which means there are 3.4x10-3 moles of SrSO4 per liter of solution.

How do you calculate the concentration of a solution?

The concentration of a solution can be calculated by dividing the amount of solute (in moles or grams) by the volume of the solution (in liters). This will give you the concentration in units of moles per liter (M) or milligrams per liter (mg/L).

What is the significance of the "A" in the answer "A 3.4x10-3M"?

The "A" in the answer refers to the answer choice on a multiple choice question. In this case, the answer "A 3.4x10-3M" indicates that 3.4x10-3M is the correct answer to the question about the concentration of SrSO4.

Why is it important to know the concentration of a solution?

Knowing the concentration of a solution is important because it helps us understand the properties and behavior of that solution. It can also help us determine the appropriate amount of a solution to use in an experiment or to achieve a desired result.

How do you convert between different units of concentration?

To convert between different units of concentration, you can use dimensional analysis. First, write down the given concentration in its original units. Then, use conversion factors to cancel out the original units and replace them with the desired units. Make sure to include the correct prefix (e.g. milli-, micro-, etc.) to correctly convert between units.

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