The reaction between titanium ( IV) oxide and bromine trifluoride to give liquid bromine , and oxygen is:

Thus from each three moles of titanium ( IV) oxide we will get three moles of oxygen molecule
The mass of oxygen obtained = 0.143g
The moles of oxygen obtained
= 
So moles of titanium ( IV) oxide required will be 0.00447mol
the molar mass of titanium ( IV) oxide is 79.87g/mol
mass of titanium ( IV) oxide used will be = 
This mass of titanium ( IV) oxide is present in 2.367g of impure sample
the mass percent will be


The percentage of titanium ( IV) oxide in impure sample is 15.08% (w/w)
Okay I did the math and I'm guessing around 18*C
The question is incomplete, here is the complete question:
A chemist prepares a solution of copper(II) sulfate
by measuring out 69.2 g of copper(II) sulfate into a 400. mL volumetric flask and filling the flask to the mark with water.
Calculate the concentration in mol/L of the chemist's copper(II) sulfate solution. Round your answer to 3 significant digits.
<u>Answer:</u> The molarity of copper (II) sulfate solution is 1.08 mol/L
<u>Explanation:</u>
To calculate the molarity of solution, we use the equation:

We are given:
Given mass of copper (II) sulfate = 69.2 g
Molar mass of copper (II) sulfate = 159.6 g/mol
Volume of solution = 400. mL
Putting values in above equation, we get:

Hence, the molarity of copper (II) sulfate solution is 1.08 mol/L
Answer:
9.2 grams of ethanol should be added.
Explanation:
Let the mass of ethanol be x
Density of an ethanol = 
Volume of the ethanol =
Mass of chloroform = 5.0 g
Density of an chloroform= 
Volume of the ethanol =
Mass of the mixture,m = x + 5.0 g
Density of the mixture = 
Volume of the mixture=



Solving for x , we get
x = 9.2 g
9.2 grams of ethanol should be added.
Answer:
Mixture.
Pizza is a mixture of a lot of things like dough, sauce, meat, veggies, cheese, etc.
Each of those things is a mixture of other things like proteins, starches, sugars, water, fiber, vitamins, minerals, etc.