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kiruha [24]
3 years ago
6

URGENT! 15 POINTS, WILL MARK BRAINLIEST

Chemistry
1 answer:
Virty [35]3 years ago
3 0

Answer:

Explanation:

A. Linear Relationships

x 2     4       6       8     10     12

y 4.4  8.8  13.2  17.6   22  26.4

(you can plot this by using the (x,y) coordinates for each pair above.)

B. y=2.2x

mass is 2.2 times larger than the volume.

C. The mass is 2.2 times the volume.

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The strongest of the intermolecular forces are hydrogen bonds
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3 years ago
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How many moles of water are in a beaker with 50 mL?
tatiyna

Answer:

Number of moles = 2.8 mol

Explanation:

Given data:

Number of moles of water = ?

Volume of water = 50 mL

Density of water = 1.00 g/cm³

Solution:

1 cm³ =  1 mL

Density = mass/ volume

1.00 g/mL = mass/ 50 mL

Mass = 1.00 g/mL× 50 mL

Mass = 50 g

Number of moles of water:

Number of moles = mass/molar mass

Number of moles = 50 g / 18 g/mol

Number of moles = 2.8 mol

5 0
3 years ago
From the list of the instructions and tips below, select the statement that would NOT lead to a successful recrystallization O D
Pachacha [2.7K]

Answer:

C. Precipitate the crystals as fast as possible

Explanation:

C. Precipitate the crystals as fast as possible

Precipitation if done fast , can lead to the formation of impure crystals , as impurities also get stuck inside the crystals. So it must be done slowly to obtain the pure crystals . Slower the crystals form , purer they are .

All the other options can lead to a successful recrystallization.  

5 0
3 years ago
A 3.0 l container holds a sample of hydrogen gas at 300 k and 100 kpa. if the pressure increases to 400 kpa and the volume remai
Dahasolnce [82]
    The  temperature will  be  1200K   if  the volume remained   constant

      calculation
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P1 =  100 Kpa
T1=  300 K
P2=  400 Kpa
T2=?

by  making  T2   the subject of the formula  T2 =( P2 xT1)/P1

T2  is therefore = (400 KPa  x 300 K)  / 100 Kpa = 1200 K
4 0
3 years ago
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If .680 g/L of a gas is dissolved in water at 5.00 atm of pressure, how much will dissolve (in g/L) at 8.00 atm of pressure.
KatRina [158]

Density and pressure are directly proportional

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\\ \rm\Rrightarrow 5.44=5\rho_2

\\ \rm\Rrightarrow \rho_2=1.088g/\ell

5 0
2 years ago
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