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
MrRa [10]
3 years ago
12

What is the mass of a sample of NH3 containing 7.20 x 1024 molecules of NH3? (5 points) Group of answer choices 203 grams 161 gr

ams 214 grams 187 grams
Chemistry
1 answer:
Nitella [24]3 years ago
8 0

Answer:

203 grams

Explanation:

The no. of moles of (6.3 x 10²⁴ molecules--Avagadros number) of NH₃ = (1.0 mol)(7.2 x 10²⁴ molecules)/(6.022 x 10²³ molecules) = 11.96 mol.

The no. of grams of NH₃ present = no. of moles x molar mass = (11.96 mol)(17.0 g/mol) = 203.3 g ≅ 203.0 g.

You might be interested in
Which weather condition is NOT associated with warm fronts??
slavikrds [6]

Answer:

A Winter storm usually does not come with a warm fronthey warm front.

Explanation:

When the front passes over an area it means to change in the weather. Many. Many friends cause weather events such as rain thunderstorms gusty winds tornadoes and hurricanes.

5 0
2 years ago
100 POINTS HELP WILL GIVE BRAINLIEST
vodomira [7]

b. testing the hypothesis

6 0
1 year ago
In the lab you find four bags; each contains 5.00 g of a different gas at STP. The gases are O2, CH4, CO2, and He. Which bag has
hichkok12 [17]

Answer:

lesser the molar mass of the gas higher the no. of moles included in a certain mass sample. ie at STP more volume is required for the gas having less molar mass.

He has the smallest molar mass.

Therefore bag of He is the biggest.

4 0
3 years ago
Substances that are less dense than water will_____ and substances with a density that is greater than 1.00 g/ml will____
Stells [14]
Substances that are less dense than water will FLOAT and substances with a density that is greater than 1.00g/ml will SINK.
7 0
3 years ago
A star's mass determines the —
kvasek [131]
It’s either A or C sorry I can’t help more
6 0
3 years ago
Other questions:
  • Which of the following are examples of compounds?<br> CO2<br> H2O<br> С<br> Au
    9·2 answers
  • What Is the name of the force that holds together the sub Tomic particles of the nuclear?
    10·1 answer
  • How are atmospheric carbon dioxide levels and average global temperature related?
    13·2 answers
  • Determine the amount of moles in 6.36x10^25 molecules of H2O
    13·1 answer
  • The nucleus of a certain atom has seventeen protons and eighteen neutrons. how many electrons does the atom have?
    10·1 answer
  • 50 POINTS PLUS BRAINLIEST NEED HELP ASAP<br> Please solve these 5 questions
    6·1 answer
  • When is national chocolate milkshake day?
    8·1 answer
  • A steel tank contains carbon dioxide at a pressure of 13.0 atm when the temperature is 34oC. What will be the internal gas press
    5·1 answer
  • You want to compile a list of properties of a substance , but you don't have a way to measure mass it volume. What kinds of prop
    7·1 answer
  • If liquid carbon disulfide reacts with 450 mL of oxygen to produce the gases carbon dioxide and sulfur dioxide, what volume of e
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!