Question
Asked Nov 11, 2019
40 views

a 1.500 g sample of a mixture of solid Na3PO4 *12H2O and BaCL2* 2H2O was dissolved in water and formed 0.520g of Ba3PO4 precipitate . If reagent tests demonstrated that Na3PO4* 12H2O was the limitng reactant in the precipitaion reaction, calculate the mass percent of each reactant salt in the original sample. 

check_circle

Expert Answer

Step 1

The reaction proceeds according to the following equation

help_outline

Image Transcriptionclose

Baз (РОд)2 + 6NaCl + 30H,о ЗВаСl), 2H,0 2Na;POд 12H-0

fullscreen
Step 2

Since Na3PO4.H2O is the limiting reagent

help_outline

Image Transcriptionclose

2 moles of Na,PO4.12H,0 produces 1 mole of Ba,(PO4)2 therefore when 0.520 g of Ba3 (PO4),is produced given mass no of moles of Ba^ (PO4)2- molar mass 0.520g 602g 0.00086mol no of moles of Na^PO4.12H,0= 2x 0.00086 =0.00172mol

fullscreen
Step 3

Mass of Na3PO4.H2O

...
help_outline

Image Transcriptionclose

mass of Na,PO4.12H20 =moles x molar mass 0.00172 x380g = 0.6536g

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Quantitative analysis

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: A sample of oxygen gas has its absolute temperature halved while the pressure of the gas remained co...

A: GivenOriginal pressure of the gas = PNew pressure of the gas = POriginal temperature of the gas = KN...

question_answer

Q: Use the information in the picture to write the rate lock for this reaction and calculate the value ...

A: Click to see the answer

question_answer

Q: How would I solve for the mass ( in grams )

A: Given,Heat absorbed = 45.5 JMass of sample = ?Specific heat of sample = 0.82 J/g KChange in temperat...

question_answer

Q: A 0.025-g sample of a compound composed of boron and hydrogen, with a molecular mass of ~28 amu, bur...

A: The empirical formula is the chemical formula of any compound that represents the proportions of eac...

question_answer

Q: 5. A,B and, C

A: In dash-wedge notation, the plane of the paper contains two bonds. The third bond is drawn towards t...

question_answer

Q: Glucose, C6H12O6, is metabolized in living systems. How many grams of water can be produced from the...

A: The moles of O2 and glucose can be calculated as

question_answer

Q: Calculate the difference in energy (in joules) between a photon with λ= 617 nm and a photon with λ= ...

A: 1nm = 10-9 mEnergy can be calculated using following formula.

question_answer

Q: Of the following, which has the greatest size? Why? a) F b) S c) Cl d) N^-3 e)P^-3

A: In periodic table, in a period , from left to right size of the atom decreases and in a group, from ...

question_answer

Q: For the following reaction, 0.104 moles of zinc oxide are mixed with 8.64 grams of water.zinc oxide ...

A: The given balanced reaction is as follows,