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
Sindrei [870]
3 years ago
11

How many moles of atoms are in 9.00 g of 13c?

Chemistry
2 answers:
Blababa [14]3 years ago
8 0
<span>The atomic weight of 13C should be pretty close to 13.0. (If you have the exact mass, use it in the problem.) So, 9.00 g / 13.0 g/mol = 0.692 moles Therefore, the answer should be 0.692 moles are in 9.00 g of 13C.</span>
patriot [66]3 years ago
7 0
I'm pretty sure the answer is
9/13 moles
You might be interested in
Mandelic Acid is an organic acid composed of carbon (63.15%), hydrogen (5.30%), and oxygen (31.55%). Its molar mass is 152.14 g/
Dafna1 [17]

Answer:

Empirical formula is C3H3O

Molecular formula C9H9O3

Explanation:

From the question given, we obtained the following data:

Carbon = 63.15%

Hydrogen = 5.30%

Oxygen = 31.55%

We can obtain the empirical and molecular formula by doing the following as illustrated in the attached file. Please see attachment for explanation.

3 0
3 years ago
Read 2 more answers
Please help<br> It’s super quick
UkoKoshka [18]

Answer:

1. a

Explanation:

2. c

7 0
3 years ago
Read 2 more answers
Which of the following equations has correct formulas and also is a balanced equation?
aliya0001 [1]

Answer : The correct option is, (B)

Explanation :

Balance equation : Balanced equation are those equation in which the number of atoms of each element and the total charge must be same on products side and reactants side.

In the given options, only option (B) equation has correct formula and also a balanced equation.

2Be+O_2\rightarrow 2BeO

while the other options has incorrect formulas and also an unbalanced equations.

The correct equation for option A is, CaCO_3\rightarrow CaO+CO_2

The correct equation for option C is, 2Mg+O_2\rightarrow 2MgO

The correct equation for option D is, KCl+HNO_3\rightarrow HCl+KNO_3

Hence, the correct answer is, (B) 2Be+O_2\rightarrow 2BeO

5 0
3 years ago
What is the density of a block marble that occupies 255 cm^3 and has a mass of 1000g
RUDIKE [14]

Answer:

<h2>3.92 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question we have

density =  \frac{1000}{255}  \\  = 3.921568...

We have the final answer as

<h3>3.92 g/cm³</h3>

Hope this helps you

4 0
3 years ago
Please answer fast, shouldn't take long to do ^-^ (will give brainliest)
Anna [14]

Answer:

B

Explanation:

5 0
3 years ago
Other questions:
  • Empirical formula of a compound if a 50.0 g sample of it contains 9.1g Na ,20.6 g Cr ,and 22.2 g O
    7·1 answer
  • What produces energy in the Sun?
    10·2 answers
  • Which conditions create a thunder storm? Select three responses.
    11·1 answer
  • 1. If we have a reaction of Zn3PO4 and HCl, what would the products of this
    5·1 answer
  • The number of atoms of sulfur in 2.66 grams of sulfur
    10·1 answer
  • Write the equilibrium constant expression, Kc, for the following reaction: If either the numerator or denominator is 1, please e
    15·1 answer
  • Which characteristics do photosynthesis and cellular respiration have common
    8·1 answer
  • If 2.35 L hydrogen gas react with nitrogen gas to form nitrogen trihydride, how many grams of nitrogen will be needed for the re
    14·1 answer
  • Oxygen
    12·2 answers
  • Who wants to talk till 1am? hmu:)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!