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3 years ago

If the pOH increases is a solution getting more basic or less basic?

Chemistry

1 answer:

sveticcg [70]3 years ago

6 0

Answer:

Increases

Explanation:

Both acids and bases can measured

using the pH or pOH scale. Both

scales provide a measure of either

the H+ concentration or the OHconcentration.

Notice that each scale shows were

acids and bases both are located.

• When acids are measured, the

pH is less than 7, but the pOH

is greater than 7.

• When bases are measured,

the pH is greater than 7, but

the pOH is less than 7.

Both scales are dependent on what

ion you are measuring

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It is an ideal gas law based problem. Ideal gas law equation is used to solve this. The equation is:

PV=nRT

Since it asks to calculate the moles that is n, so let's rearrange this for n:

$n=\frac{PV}{RT}$

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T = 17 + 273 = 290 K

P = 746 mmHg

we need to convert the pressure from mmHg to atm and for this we divide by 760 since, 1 atm = 760 mmHg

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Let's plug in the values in the equation to get the moles.

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In france grapes are 1.83 euros per kilogram. What is the cost of grapes in dollars per pound if the exchange rate is 1.40 dolla

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3 years ago

A pycnometer is a precisely weighted vessel that is used for highly accurate density determinations. Suppose that a pycnometer h

dexar [7]

Answer:

5.758 is the density of the metal ingot in grams per cubic centimeter.

Explanation:

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Mass of pycnometer with water ,m= 45.65 g

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1 kg = 1000 g

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$998.2 kg/m^3=\frac{998.2 \times 1000 g}{10^6 cm^3}=0.9982 g/cm^3$

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$Density=\frac{Mass}{Volume}$

$V=\frac{m'}{d}=\frac{18.05 g}{0.9982 g/cm^3}=18.08 cm^3$

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Mass of water when metal and water are together ,m''= 56.83 g - M'- M

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Volume of water when metal and water are together = v

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Density of metal = d'

Volume of metal = v' = $\frac{M'}{d'}$

Difference in volume will give volume of metal ingot.

v' = v - V

$v'=19.73 cm^3-18.08 cm^3=$

$v'=1.65 cm^3$

Since volume cannot be in negative .

Density of the metal =d'

= $d'=\frac{M'}{v'}=\frac{9.5 g}{1.65 cm^3}=5.758 g/cm^3$

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3 years ago