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
WITCHER [35]
3 years ago
12

Remember to use the proper number of significant figures and leading zeros in all calculations. Gelatin has a density of 1.27 g/

cm³. If you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g 2500 g 3.9 x 10-4 3.937x 10-4
Chemistry
1 answer:
Neporo4naja [7]3 years ago
4 0

Answer : The mass of gelatin is 2500 g.

Solution : Given,

Density of gelatin = 1.27g/Cm^3

Volume = 2.0 L = 2.0\times 10^3Cm^3              (1L=10^3Cm^3)

Formula used :

Density=\frac{Mass}{Volume}

By rearranging the formula.

Mass=Density\times Volume

Now put all the given values in this formula, we get

Mass=(1.27g/Cm^3)\times (2.0\times 10^3Cm^3)=2.5\times 10^3g=2500g

In case of multiplication, we take the least precise number of significant figure.

Therefore, the mass of gelatin is 2500 g.

You might be interested in
Convert 4.5 X 1022 molecules of H2O to moles.
noname [10]

Answer:

<h3>The answer is 0.075 moles</h3>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L}  \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{4.5 \times  {10}^{22} }{6.02 \times  {10}^{23} }  \\  = 0.074750830...

We have the final answer as

<h3>0.075 moles</h3>

Hope this helps you

3 0
2 years ago
If you are calculating the grams to mL ratio, you are trying to find the object’s…
Alex

Answer:

Density

Explanation:

The ratio of mass to the volume of an object is called its density. Unit of mass is grams and that of volume is mL.

Density = mass/volume

\text{Density}=\dfrac{\text{grams}}{\text{mL}}\\\\=\text{grams/mL}

If you are calculating the grams to mL ratio, it means that we are trying to find the object's density.

4 0
3 years ago
What istope of an atom if it has 29 protons and 36 neutrons?<br>​
Lunna [17]

Answer:

Copper Atoms

Explanation:

All copper atoms have atomic number 29: all their nuclei contain 29 protons. But they also contain uncharged particles called neutrons. In natural copper, the atoms are of two kinds. One has 29 protons and 34 neutrons in the nucleus; the other has 29 protons and 36 neutrons

5 0
3 years ago
A sample was collected from a computer keyboard and a toilet seat using two separate cotton swabs. Then, each swab was wiped on
Gnom [1K]

Answer:

toilet seat and washing of hands ✋ very well

5 0
2 years ago
(03.04 MC)<br> What is the formula for sodium nitrite?<br> O NaN<br> O NaN<br> O NaNO2<br> O NaNO3
charle [14.2K]

Answer:

NaNO2 is the formula for sodium nitrite

Explanation:

Check the selected ions chart to find out more in depth.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the concentration of a 0.750 l solution that contains 52.0 g of glucose (c6h12o6)?
    7·1 answer
  • How is n1 in the Rydberg equation related to the quantum number n in the Bohr model of the atom?
    13·1 answer
  • Which of the following is not evidence of a chemical change?
    9·1 answer
  • Which is not a standard type of phytoplankton
    13·1 answer
  • What is the molarity of an H2SO4 solution if 49.0 mL are titrated by 68.4 mL of a .333 M NaOH solution
    12·1 answer
  • Why does your upper body keep moving when you stop running
    15·2 answers
  • Energy from the Sun arrives at the top of the Earth's atmosphere with an intensity of 1.1 kW/m2 . How long does it take for 1.91
    11·1 answer
  • 1.what happens when vinegar and baking soda are passed through lime water?
    15·1 answer
  • Determina a quantidade da agua produzida quando 20 gramas de H2 reage com 8 gramas de O2? a) Indique o reagente limitante ? b) D
    12·1 answer
  • DOES a single population have a lot of genetic diversity in it when it is always reproducing together?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!