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
Arisa [49]
3 years ago
8

Ethylene glycol has a density of 1.11g/cm3. What is the mass in grams of 387ml of ethylene glycol?

Chemistry
1 answer:
FromTheMoon [43]3 years ago
4 0
Density is defined as the mass per unit volume. 
formula is as follows
density =  \frac{mass}{volume}
we have been given the density and volume so we need to find the mass of ethylene glycol
if we rearrange the equation making mass the subject
mass = density x volume
density = 1.11 g/cm³
this means that 1 cm³ of solution has a mass of 1.11 g
since mL = cm³
therefore 387 cm³ of solution has a mass of 1.11 g/cm³ x 387 cm³ = 429.6 g
mass of ethylene glycol is 429.6 g
You might be interested in
Help! The products of a chemical equation are CO2 and 2H20. Which set of atoms
elixir [45]

D. Ap3x just did it

---------

5 0
2 years ago
Read 2 more answers
What is the excess reactant in the combustion of 23 g of methane in the open atmosphere?
Marta_Voda [28]

Answer : The excess reactant in the combustion of methane in opem atmosphere is O_{2} molecule.

Solution : Given,

Mass of methane = 23 g

Molar mass of methane = 16.04 g/mole

The Net balanced chemical reaction for combustion of methane is,

CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)

First we have to calculate the moles of methane.

\text{ Moles of methane}=\frac{\text{ Given mass of methane}}{\text{ Molar mass of methane}} = \frac{23g}{16.04g/mole} = 1.434 moles

From the above chemical reaction, we conclude that

1 mole of methane react with the 2 moles of oxygen

and 1.434 moles of methane react to give \frac{2moles\times 1.434moles}{1moles} moles of oxygen

The Moles of oxygen = 2.868 moles

Now we conclude that the moles of oxygen are more than the moles of methane.

Therefore, the excess reactant in the combustion of methane in open atmosphere is O_{2} molecule.


6 0
3 years ago
¿Qué masa tiene un cuerpo que cuando se le aplica una fuerza de 20N se acelera 4m /s2?
PIT_PIT [208]

Answer:

5kg?

Explanation:

6 0
3 years ago
Read 2 more answers
For which purpose do biochemist insert human genes into bacteria
Mumz [18]

Answer: to find a cure for the common cold to produce insulin for diabetics

Explanation: It has helped many people

5 0
3 years ago
Cl2 is a stable diatomic molecule. It can be decomposed to form two Cl atoms as
Nikitich [7]

Answer:

Option B: ΔH is (+); endothermic

Explanation:

From the reaction Cl2 → 2Cl(g) given, we can see that the number of moles on the left hand side is 1 while on right hand side, it is 2. This means the number of moles are increasing and it means that the randomness of the system has increased. Also, the bonds are being broken down.

Therefore, the reaction is endothermic. In endothermic reactions, ΔH is positive.

Thus, the correct option is option B.

4 0
3 years ago
Other questions:
  • What atomic or hybrid orbitals make up the sigma bond between c2 and c3 in propyne, chcch3 ? (c2 is the second carbon in the str
    14·1 answer
  • Determine two complex numbers, (a+bi) and (c+di), where a and d are irrational numbers and b and c are rational number
    5·2 answers
  • 18 An important environmental consideration is the appropriate disposal of cleaning solvents. An environmental waste treatment c
    9·1 answer
  • Which aqueous solution has the highest boiling point?a. 0.20 M NaClb. 0.10 M CaCl2c. 0.1 M Ga2(SO4)3d. 0.2 M C6H12O6
    12·1 answer
  • 4. As the temperature increases, the rate of an exothermic reaction *
    9·1 answer
  • Based on the rocks they contain, predict how Devils Tower and the Giant's Causeway formed. Explain your answer in terms of extru
    13·2 answers
  • Argon has a pressure of 34.6 atm. It is transferred to a new tank with a volume of 456 L and pressure of 2.94 atm. What was the
    9·1 answer
  • 1
    5·1 answer
  • Layer F can help scientists to correlate the relative age of another layer. What makes layer F useful for relative dating?
    8·2 answers
  • A piece of metal with a mass of 23.2 g at 120.1oC is placed in a styrofoam cup containing 35.0 g of water at 22.2oC. Once the sy
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!