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
TiliK225 [7]
3 years ago
6

To identify a liquid substance, a student determined its density. Using a graduated cylinder, she measured out a 45-mL sample of

the substance. She then measured the mass of the sample, find ing that it weighed 38.5 g. She knew that the substance had to be either isopropyl alcohol (density 0. 785 g/ mL) or toluene ( density 0.866g/ mL). What are the calculated density and the probable identity of the substance?
Chemistry
1 answer:
nalin [4]3 years ago
8 0

Answer:

Calculated density = 0.8555g/ mL

Probable identity = Toulene

Explanation:

First off, the substance choices are;

isopropyl alcohol (density 0. 785 g/ mL)

toluene ( density 0.866g/ mL)

So upon calculation, if the density of the liquid substance is equal to either of the substances in the choice, it is that substance.

The relationship between density, mass and volume is given as;

Density = Mass / Volume

Mass = 38.5g

Volume = 45ml

Density = 38.5 / 45 = 0.8555g/ mL

Calculated density = 0.8555g/ mL

Among both substances, it is closest to  toluene ( density 0.866g/ mL).

Probable identity = Toulene

You might be interested in
Sodium (Na) has an atomic number of 11 and an atomic mass of 23. Which of the following correctly shows the electron
Pepsi [2]

Answer:

soudioum has 12 electrons

6 0
3 years ago
What are the complex organic compounds concentrated in grapes' skin, pits and stems that gives red wines their characteristic dr
SashulF [63]
Your team has been hired to advice a fictional
agribusiness company named "Merced Grapes
and Wine", or MGW. MGW is located in the
Merced county, California, where the economy is
driven by agriculture, and works with many grape
farmers of the Central Valley providing different
services such as logistics and distribution,
product processing, and commercialization.
MGW has an annual revenue of $35,000,000
thanks to producing and selling 10,000,000 L of
wine and 25,000 tons of table grapes per year.
They spend per year $12,000,000 in logistics,
$8,000,000 in salaries for their approximately
100 employees, $4,750,000 in maintenance
(excluded electricity), $100,000 in electricity,
and $1,000,000 in other costs. The company
wants to renew itself, and you have been called
to help MGW adapting to new opportunities to
save money or to increase their profit. They have
some "raw ideas" of what to do with their waste,
and you must analyze them and advice which
ones, if any, are feasible. Background Wine waste
consists of grape seeds, skins, pulp residue, and
stems that are byproducts in wine production,
generated after applying low pressure to the
grapes to obtain higher quality must. By applying
higher pressure to them, some bitter substances
and other compounds are released, and the
quality of that wine is too low to be
commercialized. This residue is called pomace or
orujo (in Spanish), and it is currently disposed in
a landfill at a cost. - Waste production: 10,000
tons of wine residue per year. - Current use:
disposed at a landfill at a cost of $100/ton
(including all costs involved).
I need help with option 3 shown below:
Option #3. Extraction of bioactive compounds
(such as anthocyanins and other phenolic
7 0
3 years ago
Is car exhaust flammable?
zavuch27 [327]
Yes, I mean it is the exhaust
5 0
4 years ago
What are the coefficients of the equation below when it is balanced?
strojnjashka [21]

3, 2, 1, 6

Explanation:

To balance the chemical equation the number of atoms of each element  

entering the reaction have to be equal to the number of atoms of each  

element leaving the reaction, in order to conserve the mass.

In our case we have:

3 CaCl₂ + 2 Na₃PO₄ → Ca₃(PO₄)₂ + 6 NaCl

So the stoechiometric coefficients will be:

3, 2, 1, 6

Learn more about:

balancing chemical equations

brainly.com/question/13935941

#learnwithBrainly

8 0
3 years ago
barium hydroxide is insoluble in water. do you do any reaction that produces this compound in this experiment. If so, write down
Sholpan [36]
Im not that’s sure because it’s very confusing let me find out wait
7 0
3 years ago
Other questions:
  • How do I classify elements the way that the periodic table was classified?
    15·1 answer
  • Suppose you discover a new element with 120 protons and 2 electrons in its outer level. in what group does this new element belo
    9·1 answer
  • Dr. von Waldner conducts research on depression. His hypothesis is that depression results from maladaptive thought patterns. Fr
    8·1 answer
  • AL2O3 and ZNO are which oxides​
    5·1 answer
  • 1) Determine the number of significant figures in the measurement 6.07 m
    11·1 answer
  • Ionization energy definition?
    15·1 answer
  • A set of headphones produces sounds that cancel out sound waves from the
    8·1 answer
  • How many moles of O, will occupy 1.00 L at a temper-
    11·1 answer
  • What is redox in terms of oxygen? Give an example.
    9·2 answers
  • What is wave frequency
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!