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
MAVERICK [17]
3 years ago
8

1. Calculate the RFM of Fe(NO3)2

Chemistry
1 answer:
miss Akunina [59]3 years ago
5 0

Answer:

The Relative Formula Mass of Fe(NO₃)₂ is 179.8524 grams

Explanation:

The Relative Formula Mass is the mass of one mole of a compound expressed in grams, obtained by adding together the Relative Atomic Masses, RAM, of the elements which makes the compound

The Relative Formula Mass of a compound is the same as its Relative Molecular Mass

The relative formula mass of Fe(NO₃)₂ is given as follows;

The relative atomic mass of Fe = 55.845 amu

The relative atomic mass of nitrogen, N = 14.0067 amu

The relative atomic mass of oxygen, O = 15.999 amu

Therefore, we have;

The formula mass of Fe(NO₃)₂ = (55.845 + 2×(14.0067 + 3×15.999)) amu = 179.8524 amu

The Relative Formula Mass of Fe(NO₃)₂ = 179.8524 grams.

You might be interested in
WHICH STATE OF MATTER IS THIS: PARTICLES VIBRATE AND CHANGE POSITION
SVETLANKA909090 [29]

Answer: Gas. Gas vibrates and move freely at high speeds.

Explanation:

4 0
3 years ago
Read 2 more answers
What might go wrong while heating a substance<br> with a candle?
GaryK [48]

Answer:

the wax melts

Explanation:

because i don't know

7 0
2 years ago
Read 2 more answers
How many grams of KCI can be dissolved in 63.5. g of water at 80
Masteriza [31]

Answer:

35.8 g

Explanation:

Step 1: Given data

Mass of water: 63.5 g

Step 2: Calculate how many grams of KCl can be dissolved in 63.5. g of water at 80 °C

Solubility is the maximum amount of solute that can be dissolved in 100 g of solute at a specified temperature. The solubility of KCl at 80 °C is 56.3 g%g, that is, we can dissolve up to 56.3 g of KCl in 100 g of water.

63.5 g Water × 56.3 g KCl/100 g Water = 35.8 g KCl

8 0
3 years ago
How much heat is absorbed when a 298.3 g piece of brass goes from 30.0 to 150
igor_vitrenko [27]

Answer:

Q = 1360.248 j

Explanation:

Given data:

Mass of brass = 298.3 g

Initial temperature = 30.0°C

Final temperature = 150°C

Specific heat capacity of brass = 0.038 J/g.°C

Heat absorbed = ?

SOLUTION:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 150°C - 30.0°C  

ΔT = 120°C

Q = 298.3 g × 0.038 J/g.°C × 120°C

Q = 1360.248 j

3 0
3 years ago
Question 1 (1 point)
lutik1710 [3]

Answer:

Radiation

Explanation:

Thermal energy (heat) can be transferred between objects as long as there is a temperature difference between them. However, there needs to be some kind of medium transferring it. There are basically three ways in which the energy is transferred:

1. Conduction - transfer via the direct contact  

2. Convection - transfer via the circular movement of fluids or air caused by hotter layers moving upward and colder downwards.

3. Radiation - transfer via the waves from the invisible spectrum of electromagnetic radiation ( ultra-violet, infra-red...)

Frequency is not a type of energy transfer, but a number of times something is occurring in one second. When we say that the frequency is 200Hz it means that something is happening at a rate of 200 times in a second. It's most often used in describing oscillations.

6 0
3 years ago
Other questions:
  • 20. Earth's tallest mountain ranges are formed at _______ plate boundaries. A. continental-continental B. oceanic-oceanic C. oce
    11·2 answers
  • Corey's Science Experiment 1. Purpose: To determine the effect that completely burning a log has on the weight of the log and to
    5·2 answers
  • 8th grade science by what process does carbon dioxide enter the ocean
    10·2 answers
  • 2. During asexual reproduction in paramecia, a single paramecium becomes two new
    10·1 answer
  • What element has the same number of valence electrons as sulfur?
    10·1 answer
  • Which picture best illustrates thermal energy transfer by conduction?
    5·2 answers
  • PLEASE HELP, I REALLY NEED HELP WITH THIS!!!​
    10·1 answer
  • How many grams of acetic acid are present in 250g of vinegar that contains 5.00% acetic acid? ​
    9·1 answer
  • A 435.0 g sample of CaCO3 that is 95% pure gives 225L of CO2 when reacted with excess of hydrochloric acid. What is the density
    11·2 answers
  • (Atomic masses used are C = 12.0 g mol–1, O = 16.0 g mol–1, H = 1.01 g mol–1, Cu = 63.5 g mol–1,)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!