Explanation:
just use the molar ratios to figure it out. Notice, you have to balance the chemical equation.
The mass or the weight of the substance is given as the product of moles and molar mass. The weight of CO as the same oxygen atom in carbon dioxide is 28 gm.
<h3>What is mass?</h3>
Mass of the substance has been given by the moles and the molar mass of the substance and also by the Avogadro's number (Na).
It is known that the molar mass of carbon dioxide is 44, and 1 mole of it will contain 44 gm or 6.022 × 10²³ molecules.
In a carbon dioxide molecule oxygen has 2 atoms so,
6.022 x 10²³ molecules of CO₂ = 2 × 6.022 x 10²³ atoms of Oxygen
so, 44g of carbon dioxide = 2 × 6.022 × 10²³ atoms of Oxygen
22 gm of carbon dioxide will also have 6.022 × 10²³ atoms of Oxygen
1 mole of carbon monoxide = 28 gm
So, 28 gm will have 6.022 × 10²³ atoms of Oxygen and will weigh 28 gm.
Therefore, the mass of carbon monoxide is 28 gm.
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Explanation:
The given data is as follows.
Q = 620 C, t = 0.510 hour
First, we will convert hours into seconds. Since, there are 3600 seconds present in 1 hour. Hence, number of seconds present in 0.510 hour are as follows.
= 1836 sec
Therefore, we will calculate the average current as follows.
I = 
= 
= 0.337 C/sec
It is known that,
1 C/sec = 1000 mA
So, 
= 337 mA
Thus, we can conclude that the average current in milliamperes is 337 mA.
The best method for separating two liquids in a mixture is distillation among the choices. Distillation separates liquids in terms of their volatility. Evaporation separates liquid from solid. This also applies for filtration which applies porous media for separation. Sorting is applied for two or more different kinds of solids. Answer is distillation.
Answer:
Explanation:
The significant figures are determined by 2.0. It only has 2 places, so the answer to the last question is 2.
The English unit is 67.6 oz
The metric unit is 2 L
So there are 67.6 fl oz / 2 L = 33.8 fl oz / L
In other words 1 liter has 33.8 fl oz
But you only have 2 sig digs so the answer is actually 34 fl oz/L
