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
Paraphin [41]
3 years ago
12

Determina la masa molar y el volumen que ocupa la siguiente sustancia CO2, si su masa es de 28 gr. *

Mathematics
1 answer:
balandron [24]3 years ago
7 0

Answer:

Para el CO₂ sabemos que:

densidad = 0,001976 g/cm³

Sabemos que:

densidad = masa/volumen

Entonces, si tenemos una masa de 28 g, podemos escribir:

volumen = masa/densidad

volumen = (28g)/(0,001976 g/cm³) = 14,170 cm^3

Para obtener la masa molar (es decir, la masa de un mol de esta sustancia) simplemente sumamos la masa de un mol de cada componente.

Carbono: tiene una masa molar de 12 g/mol

Oxígeno: tiene una masa molar de 16 g/mol (y tenemos dos oxígenos)

entonces la masa molar va a ser:

masa molar = 12g/mol + 2*16g/mol = 44 g/mol

Es decir, un mol de CO₂, pesa 44 gramos.

You might be interested in
Which addition expression equals −12−12?
Andreyy89
Since subtracting is the same as adding a negative number, the answer is -12 + (-12). Hope this helps!
8 0
4 years ago
Read 2 more answers
Algebra help needed
lesantik [10]

Answer:

The ball will reach the ground when h=0.

Set the equation equal to 0.

0=-8(2 t-4)(t+1)

t=-1,2

Step-by-step explanation:

The height of a golf ball after it has been hit from the top of a hill can be modeled by the equation

h=-8(2 t-4)(t+1),

where h is the height in feet and t is time in seconds.  

When ball will reach the ground the distance between ball and ground is 0. So, the ball will reach the ground when h=0.

To find the time it takes for the ball to reach the ground,  set the equation equal to 0 and use the Zero Product Property to solve for $t$.

h=-8(2 t-4)(t+1)

\Rightarrow 0=-8(2 t-4)(t+1)

Solve the equation using the Zero Product Property.

2t-4=0\Rightarrow t=\dfrac{4}{2}=2

t+1=0\Rightarrow t=-1

So, t=-1,2

7 0
3 years ago
Please no fakes this is the last of my points please try really hard to figure out this problem. if you don't get it go to anoth
Andrew [12]

Answer:

C. 10 meters

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve the absolute value equation.<br>4x + 10 = 5x-1 please​
navik [9.2K]
X=11 answer
Ur welcome
7 0
3 years ago
Read 2 more answers
A car moves at a speed that allows it to move 45 yards in 5⁄4 of a second. How long will it take a car at the same speed to move
Dimas [21]

First, to make things easier, let's turn 5/4 into a decimal given a second is equal to 1000 milliseconds.

5/4 = 1,25

1,25 * 1000 = 1250 milliseconds = 1.25 seconds


So, we've found that 45 yards can be covered in 1.25 seconds. Now we'll use the rule of 3:

45 - 1.25

80 - x


Now we solve:

(80 * 1.25) / 45 = x

100 / 45 = x

2,22... = x


So, according to our answer, 80 yards can be covered in 2,22 seconds, which in fractions would be:

2,22 =\frac{222}{100} = \frac{111}{50}


Hope it helped,


BioTeacher101

7 0
3 years ago
Read 2 more answers
Other questions:
  • 1) iven sinx=45 and cosx=35 .
    8·1 answer
  • I need help on this please
    6·1 answer
  • Find the slope of the line through (6,-7) and (4,-8)
    15·2 answers
  • 4. In ABC, AB = 8,BC = 10, and AC = 7
    8·1 answer
  • A university found that 30% of its students withdraw without completing the introductory statistics course. Assume that 20 stude
    10·1 answer
  • Help me please!! I will mark Brainliest!!!!
    14·2 answers
  • What is the simplified version of Square root of 3÷512
    8·1 answer
  • 1. Um prêmio em dinheiro foi dividido entre 3
    8·1 answer
  • Select the expression that is equivalent to m(y + o).
    7·2 answers
  • Multiply 5.4x and 2x.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!