All categories

2 years ago

How many grams of CO2 are used when 6.50 g of O2 are produced?

Chemistry

1 answer:

RoseWind [281]2 years ago

7 0

Answer:

Approximately 5.05 g of CO2 are used when 6.50 g of O2 are produced.

Explanation:

The answer to this question is the implication that the production of 6.5g of O2 requires 5g-6g CO2, since it is 63% oxygen by mass and 37% carbon dioxide by mass (not including water vapor). This would mean that 4g-5g CO2 productions could be expected to yield 2.25 or so grams oxygen for each gram CO2 produced, depending on how low the temperature was at which the reaction took place (a product like dry ice produces only cold enough to use 1/16th its volume in volume rather than 1/200th).

You might be interested in

A 50.00 mL sample of groundwater is titrated with 0.0800 M EDTA . If 10.90 mL of EDTA is required to titrate the 50.00 mL sample

vitfil [10]

Answer:

0.01744 M is the hardness of the groundwater.

1,744 ppm is the hardness of the groundwater in parts per million of calcium carbonate by mass.

Explanation:

$Ca(In)^{2+}(red)+EDTA\rightarrow Ca(EDTA)^{2+}+In(blue)$

In = Indicator

Concentration of calcium ion in groud water = $C_1=?$

Volume of ground water = $V_1=50.00 mL$

Concentration of EDTA solution = $C_2=0.0800 M$

Volume of EDTA solution = $V_2=10.90 mL$

$C_1V_1=C_2V_2$

$C_1=\frac{C_2V_2}{V_1}=\frac{0.0800 M\times 10.90 mL}{50.00 mL}=0.01744 M$

$CaCO_3(sq)\rightarrow Ca^{2+}(aq)+CO_3^{2-}(aq)$

$[CaCO_3]=[Ca^{2+}]$

So. $[CaCO_3]=0.01744 M$

0.01744 M is the hardness of the groundwater.

0.01744 Moles of calcium carbonate are present in 1 Liter of solution.

Mass of 0.01744 moles of calcium carbonate =

$0.01744 mol\times 100=1.744 g$

1 g = 1000 g

1.744 g = 1.744 × 1000 mg = 1,744 mg

$ppm=\frac{\text{Mass of solute) mg)}}{\text{Volume of solution}{L}}$

The hardness of the groundwater in parts per million :

$\frac{1,744 mg}{1 L}= 1,744$

1,744 ppm is the hardness of the groundwater in parts per million of calcium carbonate by mass.

4 0

3 years ago

How many protons , neutrons and electrons are in an atom of magnesium-24?

Minchanka [31]

Here is your answer:

Theirs 12 protons, 12 electrons, and 14 neutrons!

Reason: When you look at the atomic number for any element on the table with all of the elements that's how many protons, and electrons their are in the substance (or element) you find how many neutrons by rounding the number under the atomic number which will equal 14!

Your answer is 12:12:14

8 0

2 years ago

Which of the following is/are true?

4vir4ik [10]

Answer:

Answer is D. All of the above

3 0

2 years ago

Which kind of diagram shows changes in the three kinds of rocks over time? A. rock cycle B. stratification process C. crystalliz

kogti [31]

A. Rock Cycle

Hope its right!(:

5 0