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vredina [299]
3 years ago
6

Consider the following equilibrium and the table of experimental data:

Chemistry
1 answer:
qaws [65]3 years ago
3 0
Keq = products / reagents

N2O4(g) ⇄ 2 NO2(g)

Keq = [ NO2 ]² / [ N2O4 ]

hope this helps!
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A material has a density of 8.9 g/cm3. you have six cubic centimeters of the substance. what is the material’s mass in grams?
WITCHER [35]

Mass of a sample = M = ?

Density of a sample = D = 8.9 g/cm³

Volume of the sample = 6 cm³

By using the formula = D = M / V

Density = Mass / Volume

Mass = Density x Volume

M = D x V

Putting the values of density and mass of the sample

M =8.9g/cm³ x 6cm³ =53.4 g

<span>So, the mass of the material in grams is 53.4g</span>

3 0
3 years ago
Read 2 more answers
1 or 2 please answer
kompoz [17]

Answer:

the picture is too blury to see lol.

Explanation:

8 0
3 years ago
Pharmacists sometimes measure medicines in the unit of "grains," where 1 gr = 65 mg. The label on a bottle of aspirin reads "Asp
viva [34]

Answer:

325mg of Aspririn

Explanation:

First you should note the information that the problem gives you:

- The bottle of Aspirin has 5gr (grains)

- 1gr(grain) = 65mg (miligrams)

Also, the problem is asking about how many aspirin are in 5 gr (grains), so you should use a conversion factor, as follows:

-First you should put the quantity you need to convert:

5grAspirin

-Then you write the denominator of the conversion factor that must have the same units that you want to convert, in this case gr:

5grAspirin*\frac{}{1grAspirin}

-Then you write the numerator with the units that you want to obtain and the numerical equivalence between the units, in this case:

5grAspirin*\frac{65mgAspririn}{1grAspirin}

-Finally you multiply numerators and divide by denominators:

5grAspirin*\frac{65mgAspririn}{1grAspirin}=325mgAspririn

8 0
4 years ago
PLSSSS HELP WILL GIVE BRAINLIEST!!!!!!!!!
docker41 [41]

Answer:

72.2 moles of water is spilled

Explanation:

as moles=mass/mr

so mr of water is 16+2=18

13000/18=72.2

for the second one you can work out the moles of o2

by using moles= number of particles /6.02*10^23

so 4.65*10^26/6.02*10^23

so i got 772.4 on my calculator  to work out the amount of mass

u use the equation mass=moles*mr

so 777.2*16=12435g of oxygen gas

hope it helps :)

8 0
3 years ago
Read 2 more answers
Rust is formed by the interaction of iron and oxygen. When rust formed on an iron nail with a mass of 100g,the mass of the ruste
babymother [125]
43g id say. Due to conservation of mass that is the only one that makes even slight sense. If you had more air react then the nail would heavier
7 0
3 years ago
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