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
IRISSAK [1]
3 years ago
8

34 What is the gram-formula mass of Fe(NO3)3?(1) 146 g/mol (3) 214 g/mol

Chemistry
1 answer:
Lena [83]3 years ago
5 0
Following the atomic mass of each of these atoms, we have 1 Fe atom with 56 amu, 3 N atoms with 14 each, and 9 O atoms with atomic mass 16. Adding these together, we get 56 + 42 + 144 = 144 + 98 = 242. Your answer is (4) 242 g/mol
You might be interested in
Mixing salt with water is an example of a _________change. *<br> physical change<br> chemical change
SIZIF [17.4K]

Answer:

physical

Explanation:

no chemical reaction is happening

6 0
3 years ago
A change in the water temperature of the pacific ocean that produce warm current
liraira [26]
This is true, this isn't a question, it's a fact.
6 0
3 years ago
Suppose that 0.00150 moles of CO2 (44.0 g/mol) effuse out of a pinhole in 1.00 hour. How many moles of N2 (28.0 g/mol) would eff
kenny6666 [7]

Answer:

I was having trouble with this question idk the answer

Explanation:

4 0
3 years ago
Read 2 more answers
Atomic emission spectra are produced when the light emitted by an element passes through a prism. Which of the following stateme
xenn [34]
Option C: elements produce spectra with only few distinct lines.

The spectra are not continuos and are different for every element. This permits to identify elements.
3 0
3 years ago
If the lab technician needs 30 liters of a 25% acid solution, how many liters of the 10% and the 30% acid solutions should she m
Mice21 [21]

Answer:

7.5 L of the 10% and 22.5 L of the 30% acid solution, she should mix.

Explanation:

Let the volume of 10% acid solution used to make the mixture = x L

So, the volume of 30% acid solution used to make the mixture = y L

Total volume of the mixture = <u>x + y = 30 L .................. (1) </u>

For 10% acid solution:

C₁ = 10% , V₁ = x L

For 30% acid solution :

C₂ = 30% , V₂ = y L

For the resultant solution of sulfuric acid:

C₃ = 25% , V₃ = 30 L

Using  

C₁V₁ + C₂V₂ = C₃V₃

10×x + 30×y = 25×30

So,  

<u>x + 3y = 75 .................. (2) </u>

Solving 1 and 2 we get,

<u>x = 7.5 L </u>

<u>y = 22.5 L</u>

6 0
3 years ago
Other questions:
  • What mass (in g) of NH3 must be dissolved in 475 g of methanol to make a 0.250 m solution?
    7·1 answer
  • What is the mass number for an atom with 5 protons 6 neutrons and 5 electrons
    10·1 answer
  • The data listed below are for mechanical waves. Which wave has the greatest energy? amplitude = 7 cm; wavelength = 12 cm; period
    14·2 answers
  • When she told us the party was canceled there was a deafening silence? A. Malapropisms B.imagery C. Hyperbole D.oxymoron
    14·2 answers
  • An aqueous KNO3 solution is made using 75.1 g of KNO3 diluted to a total solution volume of 1.95 L .Calculate the molarity of th
    9·1 answer
  • Calculate the extinction coefficient where the concentration is in mg/ml and the path length is 1 cm. What dilutions of the stoc
    6·1 answer
  • The molar mass CO2 is 44.01 g/mol. How many moles of LiOH are needed to react completely with 25.5 g of CO2?
    5·1 answer
  • A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6.50kg of water at 24.2°C. Dur
    7·1 answer
  • Difficulty(Level:1)
    7·1 answer
  • Valence number of a metallic element X is 3. What is the formula of its oxide?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!