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jek_recluse [69]
2 years ago
10

A cubic container is filled up with an unknown liquid whose density is 0.180 g/cm3. The side lengh of the container is 5.00cm. W

haf is the mass of this liquid??
Chemistry
1 answer:
Romashka-Z-Leto [24]2 years ago
7 0

Answer:

22.5

Explanation:

M=D*V

V=5*5*5=125

M=0.180*125= 22.5

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Solid to Gas
miskamm [114]

Answer:

c. c. c c c c c cçcc. ccccccccc

Explanation:

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7 0
2 years ago
A biochemist carefully measures the molarity of magnesium ion in of cell growth medium to be . Unfortunately, a careless graduat
denis23 [38]

Answer:

760 uM

Explanation:

<em>A biochemist carefully measures the molarity of magnesium ion in 47, mL of cell growth medium to be 97 uM. Unfortunately, a careless graduate student forgets to cover the container of growth medium and a substantial amount of the solvent evaporates. The volume of the cell growth medium falls to 6.0 mL. Calculate the new molarity of magnesium ion in the cell growth medium Be sure your answer has the correct number of significant digits.</em>

The problem here is that the amount of magnesium ion remains the same irrespective of the volume.

Amount of magnesium in the growth medium = <em>molarity x volume</em>

    = 97 x 10^{-6} x 47 x 10^{-3} = 4.559 x 10^{-6}

Then, the volume reduced to 6.0 mL, the new molarity becomes;

<em>molarity = mole/volume </em>

       = 4.559 x 10^{-6}/6 x 10^{-3} = 7.598333 x 10^{-4} M = 759.83333 uM

To the correct number of significant digits = 760 uM

6 0
2 years ago
Which of the following is an adaptation found in many desert plants? A. large, flat leaves B. dormant period during the winter C
frosja888 [35]
I'd say the answer is D because they need to intake and keep as much water as possible.
4 0
3 years ago
Read 2 more answers
How many moles of gas occupy 98 l at a pressure of 2.8 atmosphere and a temperature of 292
lara [203]

Answer:

n = 11.45 mol

Explanation:

Given data:

Number of moles = ?

Volume of gas = 98 L

Pressure = 2.8 atm

temperature = 292 K

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

2.8 atm × 98 L = n × 0.0821 atm.L/ mol.K   × 292 K

274.4 atm.L = n ×  23.97atm.L/ mol

n = 274.4 atm.L /23.97atm.L/ mol

n = 11.45 mol

8 0
3 years ago
An atom can be called a particle, but a molecule is never called a particle.
mr_godi [17]

Answer: um is this a question or are you just telling people

Explanation:

8 0
3 years ago
Read 2 more answers
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