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Sliva [168]
3 years ago
13

Determine the mass in grams of 0.600 mol of oxygen atoms ( 32 grams x1mole/(mass of element)

Chemistry
1 answer:
yarga [219]3 years ago
8 0

Answer:

The mass of 02 is 19,2 grams in 0,6 moles

Explanation:

1 mol 0 2------------32g

0,6mol 02-----------x= (0,6 mol 02 x 32 g)/1 mol 02 = 19,2 grams

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How will freezing the juice affect its mass?
expeople1 [14]

Answer:

Mass increases since its going from liquid to solid.

Explanation:

8 0
3 years ago
Find the normality of 0.321 g sodium carbonate in a 250 mL solution.
Radda [10]

Answer:

the normality of the given solution is 0.0755 N

Explanation:

The computation of the normality of the given solution is shown below:

Here we have to realize the two sodiums ions per carbonate ion i.e.

N = 0.321g Na_2CO_3 × (1mol ÷ 105.99g)×(2eq ÷ 1mol)

= 0.1886eq ÷ 0.2500L

= 0.0755 N

Hence, the normality of the given solution is 0.0755 N

5 0
2 years ago
To interconvert the concentration units molality (m) and mass percent, you must also know the density of the solution. A) True B
uranmaximum [27]

Answer:

The correct answer is option false.

Explanation:

Molality of the solution defined as moles of substance present in 1 kilogram of   solvent.

Moles = \frac{Mass of solute}}{\text{molar mass of solute}}

Molality=\frac{Moles}{\text{Mass of solvent(kg)}}

Mass of percent (w/w%) of the solution is defined as amount of solute present in 100 grams of solution.

(w/w\%)_=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100

So, if want to inter-convert molality into mass percent we can do that without knowing density of solution.

Mass of solution = Mass of solute + Mass of solvent

7 0
3 years ago
Which substance is a compund
Oxana [17]
Answers:
______________________________________________
  1)   [D]:  " CO₂ " .  

<u>Note:</u><u> </u> This is the only answer choice given that is composed of:  "at least two different elements" .
_______________________________________________
  2)  [D]:  "carbon and hydrogen" {"C" and "H" .} .
_______________________________________________
7 0
3 years ago
The equilibrium concentrations for the reaction between N2 and O2 to form NO at a certain temperature are given in the table bel
MaRussiya [10]

Answer:

c

Explanation:

c is correct i believe

8 0
2 years ago
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