- Chemistry quick question
Ok so a quick question. I have the equation Ca3(PO4)2 --> 3Ca+2 + 2PO4-3
Sorr its confusing, int he first part the 3 4 and too are all little numbers at the bottom, for the second part the +2 and -3 are small numbers at the top to show the charges. Ok so anyways the question says if the concentration of Ca2+ is 3.39 x 10^-7 mol/L in a saturated solution of Ca3(PO4)2 what is the concentration of PO4-3. The thing im confused about it, I don't know if that means you need to multiply the Ca concentration by three, then multiply by 2/3 to get the PO4 concentration or if the Ca concentration includes the 3 outside and then divde by 3 ND MULTIPLY by 2.
Ca3(PO4)2 ==> 3Ca^+2 + 2PO4^-3
For every x amount (in molar) of Ca3PO4 that dissolves, we will have 3X for (Ca^+2) and 2X for (PO4^-3). So you divide THE (Ca^+2) GIVEN (they didn't give you 3 times calcium, they gave calcium) by 2 to get X (which is Ca3(PO4)2 and multiply by 2 to obtain (PO4^-3). OK?
So you divide THE (Ca^+2) GIVEN (they didn't give you 3 times calcium, they gave calcium) by 2
Why 2 not 3? I'm so confused now. I divided by 3 then mulipied by 2
So sorry. I goofed. Divide Ca by 3 to get X, then multiply by 2 to obtain PO4.
Thanks very mcuh = )
Answer this Question
a sample of Ca3(PO4)2 contains 3.1g phosphorus then the weight of Ca in the sample is ?
COMPRE SCI 3 stars, pls help
Properties of Stars Quick Check 1 of 5 Items Question Which measurement of a star depends on the distance of the star from earth? (1 point) luminosity absolute magnitude surface temperature apparent magnitude 2 of 5 Items Question Which color would a star
polynomial/synthetic or long division
If the polynomial x^3+6x^2+11x+6 expresses the volume, in cubic inches, of the box, and the width is (x+1)in., what are the dimensions of the box? I need to answer the question in long dvision or synthetic division, the thing is i have no idea how to do
Course Overview Quick Check
Course Overview Quick Check Question In the Unit Companion, which activity would be the most helpful for learning the main ideas in each slide of the lesson? Answer Answer a question about each part of the lesson to help your comprehension of the lesson
For $4.50 a grocer buys a case of fruit which contains 14 dozen. She knows that 4 dozen will spoil before she sells them. At what price per dozen must she sell the good ones to gain 1/3 of the whole cost? is there any quick way to do this question. please
Question 1. A Compound Containing 3 Atoms Of Carbon & 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The 2 End Products Of This Equation Are Carbon Dioxide &water. What Element Should You Look At 1st In Balancing This Equation? Choose
Consider the balanced chemical equation: 3Sr(OH)2(aq) + 2H3PO4(aq) → Sr3(PO4)2(s) + 6H2O(l). How many moles of Sr(OH)2 remain if 0.10 mol of H3PO4 react with 0.40 mol of Sr(OH)2?
Which of the following salts is NOT more soluble in acidic solution than in pure water? A. ZnS B. AgCN C. Ba3(PO4)2 D. ZnCO3 E. BiI3 The answer is E, but I don't know why or how I would go about answering a question like this. What would I have to consider
2Na3PO4 + 3CaCl2 ----> Ca3 (PO4)2 + 6NaCl how many moles of CaCl2 remain if .10 mol Na3PO4 and .40 mol CaCl2 are used? When amounts of both materials are listed one must worry about which is the limiting reagentalthough the problem seems to suggest that
AlPO4(s)Al^3+(aq)+PO4^3-(aq) PO4^3-(aq)+H3O^+(aq)HPO4^2-(aq)+H2O(l) What is the net ionic equation for AlPO4(s) dissolving in H3O^+(aq)?