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
sammy [17]
3 years ago
14

You need 2.5 moles of aluminum for an experiment. How many atoms of aluminum is this?​

Chemistry
1 answer:
emmainna [20.7K]3 years ago
3 0

Answer:

1.505×10^24 atoms

Explanation:

1mole=6.02×10^23 atoms

2.5moles=?

(crossmultiply)

2.5×6.02×10^23 ÷1

=1.505×10^24 atoms

You might be interested in
PLS HELP! WILL MARK BRAINLIEST!!! 50 PTS
AveGali [126]

Answer:

from the pic:

empirical \: formular :  \:  \: C  _{2}H _{3}O _{2}

since molar mass is 118.084 g/mol;

(C  _{2}H _{3}O _{2}) _{n} = 118.084 \\ C  _{2n}H _{3n}O _{2n} = 118.084 \\(12 \times 2)  _{n} + (1 \times 3) _{n} + (16 \times2 ) _{n} = 118.084 \\ 24_{n} + 3_{n} + 32_{n} = 118.084 \\ 59_{n} = 118.084 \\ n = 2

{ \boxed{ \bf{molecular \: formular :  \: C  _{4}H _{6}O _{4}}}}

It is an aldehyde with structure ( second pic )

3 0
3 years ago
What is the energy of a photon of green light with a frequency of 5.50 x 101^4 Hz?
Minchanka [31]
I didn't know if you meant to the power of 14 but if you did here your answer:
3.64 x 10^-19
(you just multiply the frequency by Planck's constant= 6.63 × 10^–34)
8 0
4 years ago
What controls flowering in many<br> plants?
katrin2010 [14]

Answer:

All flowering is regulated by the integration of environmental cues into an internal sequence of processes. These processes regulate the ability of plant organs to produce and respond to an array of signals. The numerous regulatory switches permit precise control over the time of flowering.

Explanation:

3 0
3 years ago
A Student Formulated A Hypothesis That Cotton Will Grow Larger Bolls ( Pods ) If Magnesium Is Added To The Soil. The Student Has
Sati [7]
Hypothesis is a smart guess that you make on the result of your experiment. You make this even before doing the experiment through inferential analysis. If the hypothesis you made was that, cotton will grow larger balls, then in the experiment, you should measure the cotton boll's size. The size should be in terms of diameter. So, the answer is b.
4 0
3 years ago
In humans, the allele for curly hair and the allele for straight hair show incomplete dominance the offspring of a curly haired
Vika [28.1K]
A
eplanation
i meannn they both had curly hair
3 0
3 years ago
Read 2 more answers
Other questions:
  • The normal boiling point for h2se is higher than the normal boiling point for h2s . this can be explained by
    13·1 answer
  • A gas occupies 18.7 L at standard temperature. What is its volume at 200.5 °C
    15·1 answer
  • Identify the compound with the highest percent ionic character. identify the compound with the highest percent ionic character.
    11·1 answer
  • Salt water is classified as a
    7·2 answers
  • What change could a chemist make to a reaction environment that would increase the likelihood that molecules in a reaction would
    8·1 answer
  • If the earth was a guava fruit, the space where the seeds are would be the core/mantle​
    15·2 answers
  • i have 5 moles of gas in a container with a volume of 45 liters and at a temperature of 210k , what is the pressure inside the c
    8·1 answer
  • Which object has the greatest K.E.?"<br> top of a hill<br> bottom of a hill<br> middle of a hill
    9·2 answers
  • What makes a cyclone rotate counter-clockwise north of the Equator and clockwise south of the Equator?
    11·2 answers
  • If an atom were the size of a baseball, its nucleus would be about the size of a(n) walnut. raisin. atom. flea.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!