Answer:- Actual molarity of the original sulfuric acid solution is 17.0M.
Solution:- Barium chloride reacts with sulfuric acid to make a precipitate of barium sulfate. The balanced equation is written as:
From this equation there is 1:1 mol ratio between barium sulfate and sulfuric acid. So, if excess of barium chloride is added to sulfuric acid then the moles of sulfuric acid would be equivalent to the moles of barium sulfate. Moles of barium sulfate could be calculated from the mass of it's dry precipitate.
Molar mass of barium sulfate is 233.4 grams per mol. The calculations for the moles of sulfuric acid are given below:
= 
From given information, 10.00 mL of final acid solution were taken to react with excess of barium chloride. It means 0.00170 moles of sulfuric acid are present in 10.0 mL of final acid solution. We could calculate the actual molarity of the final solution from here as:
10.0 mL = 0.0100 L
= 0.170M
Now we would use the dilution equation to calculate the actual molarity of the original sulfuric acid solution. The molarity equation is:
From given information, 10.0 mL of original acid solution were taken in a 100 mL flask and water was added up to the mark. It means the 10 fold dilution is done. 10 fold dilution means the molarity becomes one tenth of it's original value. Let's do the calculations in reverse way as we have calculated the molarity of the final solution.
let's say the molarity after first dilution is Y. the volume is taken as 10.0 mL. Final volume is 100 mL and the molarity is 0.170M. Let's plug in the values in the equation:
Y(10.0mL) = 0.170M(100mL)
![Y=\frac{0.170M*100mL}{10.0mL}Y = 1.70MLet's do the similar calculations to find out the actual molarity of the original acid solution. Let's say the molarity of the original acid solution is X. 10.0 mL of it were taken and diluted to 100 mL on adding water. The molarity is 1.70M as is calculated in the above step. Let's plug in the values in the molarity equation again to solve it for X as:X(10.0mL) = 1.70M(100mL)[tex]X=\frac{1.70M*100mL}{10.0mL}](https://tex.z-dn.net/?f=Y%3D%5Cfrac%7B0.170M%2A100mL%7D%7B10.0mL%7D%3C%2Fp%3E%3Cp%3EY%20%3D%201.70M%3C%2Fp%3E%3Cp%3ELet%27s%20do%20the%20similar%20calculations%20to%20find%20out%20the%20actual%20molarity%20of%20the%20original%20acid%20solution.%20Let%27s%20say%20the%20molarity%20of%20the%20original%20acid%20solution%20is%20X.%2010.0%20mL%20of%20it%20were%20taken%20and%20diluted%20to%20100%20mL%20on%20adding%20water.%20The%20molarity%20is%201.70M%20as%20is%20calculated%20in%20the%20above%20step.%20Let%27s%20plug%20in%20the%20values%20in%20the%20molarity%20equation%20again%20to%20solve%20it%20for%20X%20as%3A%3C%2Fp%3E%3Cp%3EX%2810.0mL%29%20%3D%201.70M%28100mL%29%3C%2Fp%3E%3Cp%3E%5Btex%5DX%3D%5Cfrac%7B1.70M%2A100mL%7D%7B10.0mL%7D)
X = 17.0M
Hence, the actual molarity of sulfuric acid solution is 17.0M.
As given that some volume of water has been dispensed say "x mL"
The initial weight of bottle =8.4376 g
The final weight of bottle + water =28.5845 g
So weight of water transferred = 28.5845 g - 8.4376 g = 20.1469 g
Now there is a relation between density, mass and volume
density = mass / volume
Therefore
Volume = mass / density
So volume of water dispensed = mass dispensed / density =20.1469 g / 0.9967867 g/ml.
Volume of water = 20.2118467 mL
Answer:
Travis categorized their characteristics correctly.
Explanation: This is because plants use chloroplast in their cells to help them with photosynthesis, and this is what turns them green. Animals do not make their own food so they have no use for chloroplast in their cells.
In order for us to have water to drink, it first needs to go through a process called the water cycle. And in that water cycle there’s a process called evaporation. Evaporation is the process by which water changes from a liquid to a gas. In order for it to rain we need clouds and clouds are made of water. The water is heated causing water molecules to convert into gas, that gas then goes through a process called condensation creating clouds. At some point those clouds will be full of water, and all that water will then cause the cloud to release the water molecules causing rain.
<em>Question : Where does crude oil come from?</em>
<em>So firstly Crude oil is a fossil fuel and,is know and called implies, Over time the fossils the remains of vegetation and various organisms, and bacteria and algae, are covered by an increasing amount of soil before they are converted through heat and pressure into matter composed largely of hydrocarbons.</em>
<em>Hopefully that helps you ! have a good day !</em>
