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Anit [1.1K]
3 years ago
5

11.

Chemistry
1 answer:
svetlana [45]3 years ago
5 0

Answer:

Explanation:

dfghyuiop[]5565677dam u baddie no comparing

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A gas has a volume of 490. mL at a temperature of -35.0 degrees C. What volume would the gas occupy at 42.0 degrees Celsius? Ple
miskamm [114]

Answer:

648.5 mL

Explanation:

Here we will assume that the pressure of the gas is constant, since it is not given or specified.

Therefore, we can use Charle's law, which states that:

"For an ideal gas kept at constant pressure, the volume of the gas is proportional to its absolute temperature"

Mathematically:

\frac{V}{T}=const.

where

V is the volume of the gas

T is its absolute temperature

The equation can be rewritten as

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where in this problem we have:

V_1=490 mL is the initial volume of the gas

T_1=-35.0^{\circ} + 273 = 238 K is the initial temperature

T_2=42.0^{\circ}+273=315 K is the final temperature

Solving for V2, we find the final volume of the gas:

V_2=\frac{V_1 T_2}{T_1}=\frac{(490)(315)}{238}=648.5 mL

8 0
4 years ago
gold has a density of 19.32 g/cm3 if you cut a piece of gold in half how much will the density of each piece be?
Rashid [163]

Answer:

19.32 g/cm³

Explanation:

The density will remain the same no matter how many times you cut the gold.  The density is g/cm³ or g/mL.  Density is essentially how many grams 1 mL of a compound weighs.

7 0
3 years ago
Read 2 more answers
Complete the equation for the dissociation of Fe(ClO4)3(aq). Omit water from the equations because it is understood to be presen
victus00 [196]

Answer:

The equation that tends to answer this question, (omitting the presence of water) is:

Fe (ClO4) 3 -----------> Fe (+3) + ClO4 (-1)

Explanation:

The numbers that we see in parentheses would be the oxidation numbers of each compound, in the case of iron, iron acts with an oxidation number of +3, and in the case of perchlorate it would be -1.

The stoichiometric name according to IUPAC (most widely used chemical nomenclature) is iron perchlorate.

6 0
3 years ago
General or nonspecific observation is
drek231 [11]
It is an act or instance of viewing or noting a fact, or an occurrence for some scientific or other special purpose
8 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
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