Help me please!!!!!!!!!

How many grams of water vapor (H2O) are in a 10.2-liter sample at 0.98 atmospheres and 26°C?

ASHA 777 [7]

Those this is based off the equation:
pv=nrt

for the most part it is a simple equation. all you have to do is plug stuff in. however, when looking for grams it is not as clear. the thing to look at is which of these values are we missing.
p = 0.98 atm
v = 10.2 L
n = ?
r = constant value
t = 26 C or 299 K

So we are missing n. this value has the units of moles. We we know that
molar mass = grams / moles

So if we can plug in the numbers to find n, then we can use that value and the molar mass to determine the grams. so:
0.98 * 10.2 = n *0.08206 * 299
n = 0.407 moles

the molar mass of h20 is 18.0. So
grams = molar mass * moles
grams = 18 * 0.407
grams = 7.33 grams.

however since atmospheres only has 2 sig figs, so will out answer. So
g = 7.3

3 0

3 years ago

Please include weather,air mass,front,humidity,temperature,air pressure and precipitation.

kow [346]

The humidity of yesterday was grater than today`s there has been percipitation and also a lot of air pressure

8 0

3 years ago

Read 2 more answers

Que órgano del sistema digestivo almacena bilis

lara [203]

Answer:

Gallbladder

Explanation:

4 0

3 years ago

If you had excess chlorine, how many moles of of aluminum chloride could be produced from 10.0 gg of aluminum? Express your answ

gayaneshka [121]

Answer:

The answer is 0.370moles (3 s.f)

Explanation:

Step 1: write the balanced equation for the reaction

Equation for the reaction:

2Al(s) + 6HCl(g) ---------> 2AlCl3(g) + 3H2(g)

Step 2: Equate the mole of the needed substances

So therefore,

2moles of aluminum will produce 2 moles of aluminum chloride

Note that:

Relative atomic mass of Al = 27 g/mole

And, 27g of Al = 1 mole of Al.

Step 3: Solve for the required number of mole.

2moles of Al = 2moles of AlCl3

Same as

1 mole of Al = 1 mole of AlCl3

27g of Al = 1 mole of AlCl3

10g of Al = (1/27 * 10g) of AlCl3

10g of Al = 0.370moles of AlCl3

Thanks

4 0

3 years ago

What type of bond connects the fatty acid?

scoray [572]

The type of bond connects the fatty acid will be " an ester bond".

Fatty acids could be joined to each of the three carbons of the glycerol molecule in a fat molecule by an ester bond that passes through into the oxygen atom. Three molecules are emitted during the establishment of the ester bond. Fats were also known as triacylglycerols as well as triglycerides because they are made consisting of three fatty acids and glycerol.

The three major nutrients in a diet may be carbohydrates, proteins, and fats. According to how many hydrogen bonds they contain, fats are classified as either saturated as well as unsaturated.

The type of bond connects the fatty acid will be " an ester bond".

Hence, the correct answer will be option (c)

To know more about fatty acid

brainly.com/question/13528495

#SPJ4

7 0

2 years ago