3 years ago

How many moles of hydrogen sulfide are contained in a 77.7-8 sample of this gas?

Chemistry

1 answer:

valentina_108 [34]3 years ago

7 0

Answer:

its either C or D my guess is C though because 35.0g of hyddrogen is =1.03 mol

Explanation:

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3 years ago

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vivado [14]

Answer:

D. All of these.

Explanation:

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3 years ago

Air at 293 K and 750 mm Hg pressure has a relative humidity of 80%. What is its percent humidity? The vapour pressure of water a

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Answer : The correct option is, (c) 79.62

Explanation :

The formula used for percent humidity is:

$\text{Percent humidity}=\text{Relative humidity}\times \frac{p-p^o_v}{p-p_v}\times 100$ ..........(1)

The formula used for relative humidity is:

$\text{Relative humidity}=\frac{p_v}{p^o_v}$ ...........(2)

where,

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$p^o_v$ = vapor pressure of water

p = total pressure

First we have to calculate the partial pressure of water vapor by using equation 2.

Given:

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Now put all the given values in equation 2, we get:

$0.80=\frac{p_v}{17.5mmHg}$

$p_v=14mmHg$

Now we have to calculate the percent humidity by using equation 1.

$\text{Percent humidity}=0.80\times \frac{750-17.5}{750-14}\times 100$

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3 years ago

How many grams does 1.0 liter of motor the density of motor oil is 0.80g / mL

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3 years ago

FOR LondonCreamCakes<br> no sure if its right but im trying to help.. lol dont mind all the tabs

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Answer:

It kinda helps but not really

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Explanation:

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2 years ago