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olga55 [171]
3 years ago
13

What pressure will be exerted by 0.650 mol of a gas at 30.0C if it is contained in a 0.700 L vessel?

Chemistry
1 answer:
Sonbull [250]3 years ago
8 0
I believe you need to use the ideal gas constant which is Pv=nRT and P is the pressure so if you solve for P you get P=(nRT)/v and you can then just plug in n= number of moles T=temp in kelvins v=volume in liters R= is a constant of .08206 L*atm/K*mol
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A chemical that causes a sudden, almost instantaneous release of pressure, gas and heat when subjected to sudden shock, pressure
Arada [10]
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7 0
3 years ago
Find the molarity of 750 ml solution containing 346 g of potassium nitrate
Zinaida [17]
Given mass of KNO₃=346g
Molar mass of KNO₃=(39.098)+(14)+(15.99*3)=101.068gmol⁻¹
Volume of Solution=750ml=0.75dm³

Molarity=(mass of solute/molar mass of solute)*(1/volume of sol. in dm³)
            =(346/101.068)*(1/0.75)
            =4.56 mol dm⁻³
5 0
3 years ago
Throughout his career Newton had conflict with _____.
kkurt [141]
John dalton

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3 0
3 years ago
What is the mole ratio of PbO2 to water?<br><br> PbO, H,0 = 1:0
ipn [44]

Answer:

<em>The mole ratio of PbO2 to H2O is 1 : 2.</em>

Explanation:

The balanced reaction equation is:

Pb + PbO2 + 2H2SO4 → 2PbSO4 + 2H2O

On the reactant side, we have 1 mole of Pb, 1 mole of PbO2, 2 moles of H2SO4.

On the product side, we have 2 moles of PbSO4 and 2 moles of H2O.

This means that for ever 1 mole of PbO2 consumed, 2 moles of water is formed as product.

Hence, the mole ratio of PbO2 to H2O is 1 : 2.

5 0
3 years ago
A student walks 50 m north, stops, and then travels 32 m south. What is her displacement?
goblinko [34]

Her displacement = 18 m

<h3>Further explanation</h3>

Given

walks 50 m north and 32 m south

Required

displacement

Solution

Displacement shows vector motion that has magnitude and direction.

Displacement only looks at the distance between the starting point and the end point

Because it takes direction into account, a positive or negative sign is required

We determine that in vertical motion the upward direction is positive and the downward direction is negative

While the horizontal movement to the right is positive and the left has a negative sign

Students moving north (from the starting point) are moving positively by + 50 m

then moving south which means moving negative as far as -32 m

So that the displacement is

\tt 50-32=18~m

7 0
3 years ago
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