Question
Asked Oct 16, 2019
28 views

MgNH4PO4•6H2O loses H2O in a stepwise fashion as it is heated. Between 40 degrees celsius and 60 degrees celsius, the monohydrate is formed. What is the percentage of phosphorus in the monohydrate?
Enter your answer with 4 significant figures

check_circle

Expert Answer

Step 1

MgNH4PO4.6H2O loses water in stepwise fashion and when the monohydrate is formed between 40°C and 60°C then there is only one molecule of water left as water of crystallisation.

Step 2

Monohydrate Formula = MgNH4PO4.H2O

Molecular mass of the monohydrate

help_outline

Image Transcriptionclose

mass of (Mg+ N+ 4xH P 4x O+ mass of H,0) (24+14+4+31+4 x 16 +18)g = 155g

fullscreen
Step 3

Atomic weight of phosphorus= 31g

Percentage of phosphorus in monohydrate is calculat...

help_outline

Image Transcriptionclose

mass of P percentage -x 100 mass of monohydrate 31 x100 155 20.00%

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: You are trying to come up with a drug to inhibit the activity of an enzyme  thought to have a role i...

A: In the case of uncompetitive inhibition, Ki for the inhibitor is calculated as shown in equation (1)...

question_answer

Q: KHP is a monoprotic acid which provides one H+ ion. How would your results be affected if a diprotic...

A: Given,Volume of NaOH = 16.00 mL = 0.016 L    (1 mL =0.001 L)Volume of H2SO4 = 14.00 mL = 0.014 LMola...

question_answer

Q: 10. The Kb of pyridine (C5H5N) is 1.8 x 10-9. What is the Ka of pyridine's conjugate acid?

A: The reaction as follows,

question_answer

Q: What mass of aspirin (C₉H₈O₄) is produced from 72.4 g of C₇H₆O₃ assuming 95.0% yield from the reacti...

A: The theoretical yield of asprin is calculated as,

question_answer

Q: How many grams of sodium acetate (82.03 g/mol) should you add to 250 mL of 0.100 M acetic acid (Ka =...

A: The pKa is calculated as follows,

question_answer

Q: To what volume should you dilute 46 mL of a 12 M stock HNO3 solution to obtain a 0.122 HNO3 solution...

A:  Molarity is the concentration of a solution in moles of solute per liters of solution. 

question_answer

Q: What is the molarity of magnesium solution made by dissolving 8.7g of magnesium chloride 2.45L of wa...

A: Mass of magnesium chloride is given as 8.7 grams, and the molecular mass of magnesium chloride is 95...

question_answer

Q: How many grams of La(IO3)3 will dissolve in 250.0 mL of water?

A: The Ksp of La(IO3)3 = 7.50×10–12 and let S be the solubility of La(IO3)3

question_answer

Q: How can I determine the order of the reaction with respect to each reactant?  Experiment 1: .0010 M ...

A: The overall order for the given reaction is determined as follows, by calculating the order of each ...