1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga nikolaevna [1]
2 years ago
10

A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4

will be needed to produce 725 mL of a solution that has a concentration of Na ions of 1.30 M
Chemistry
1 answer:
balu736 [363]2 years ago
8 0

Answer:

51.53 grams .

Explanation:

Na₃PO₄    ⇄  3Na⁺¹   +    PO₄⁻³ .

1 mole           3 mole

725 mL of 1.3 M Na⁺  ions

= .725 x 1.3 moles of Na⁺ ions

= .9425 moles

3 mole of Na⁺  is formed by 1 mole of Na₃PO₄

.9425 mole of Na⁺  is formed by .9425/3  mole of Na₃PO₄

Na₃PO₄ needed =  .9425/3  moles = .3142 moles

Molecular weight of Na₃PO₄ = 164

grams of Na₃PO₄ needed = .3142 x 164 = 51.53 grams .

You might be interested in
Word equation of nitrogen + oxygen —--> ammonia
katrin [286]

Answer:

it is ammonia nitro oxide

5 0
2 years ago
Read 2 more answers
7. Convert 5.2 cm of magnesium (Mg) ribbon to mm of Mg ribbon.
Effectus [21]
<h3>Answer:</h3>

52 mm

<h3>Explanation:</h3>

We are given;

  • 5.2 cm of magnesium

Required to convert it to cm

We are going to use the appropriate conversion factor;

  • The units used to measure length include;

Kilometer(km)

10

Hectometer (Hm)

10

Decameter (dkm)

10

Meter(m)

10

Decimeter (dm)

10

Centimeter (cm)

10

Millimeter (mm)

Therefore; the appropriate conversion factor is 10mm/cm

Thus;

5.2 cm will be equivalent to;

= 5.2 cm × 10 mm/cm

= 52 mm

Therefore, the length of magnesium ribbon is 52 mm

7 0
2 years ago
Read 2 more answers
PLEASE HELP
Art [367]
1)water has a great capacity to hold a moderate heat energy
3 0
3 years ago
What state does a maple tree enter during the winter?
Crank
D. dormancy is the correct answer
3 0
3 years ago
The tip of a match is ignited as it is struck against the matchbox. Why is this a chemical change?
LUCKY_DIMON [66]
The answer is A, because of the chemical reaction taking place color can change (as in this case). Hope it helps!
5 0
3 years ago
Read 2 more answers
Other questions:
  • If you changed the temperature of a ball from 28°C to 14°C, would you expect the pressure to increase or decrease?
    13·1 answer
  • Q1. Which reaction represents the half-reaction of lead (Pb) and the SRP value that could be found on an electric potential tabl
    13·1 answer
  • If the temperature of a gas increases, describe what should happen to the pressure of the gas. Assume the volume and amount of g
    7·1 answer
  • State the 4 major ideas of Dalton's Atomic Theory.
    9·1 answer
  • Arthur is performing a lab which requires a 0.2 M solution of calcium hydroxide. However, the only calcium hydroxide solution av
    12·1 answer
  • Which element family is all 2-
    14·1 answer
  • Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as
    9·1 answer
  • Can you explain how to convert 50pis to atm ?
    12·2 answers
  • ❗️❗️please if you can help me with this let me know. i have 10 pages of multiple choice chemistry questions and i can mark brain
    13·1 answer
  • The chemical and mechanical processes of food breakdown are called ________.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!