<h3>Answer:</h3>
                   0.64 Moles of Propane
<h3>Explanation:</h3>
Data:
          Moles of Carbon  =  1.5 mol
          Conversion factor  =  7 mol C produces = 3 mol of Propane
Solution:
              As we know,
                 7 moles of Carbon produces =  3 moles of Propane
Then,
             1.5 moles of Carbon will produce  =  X moles of Propane
Solving for X,
                      X  =  (1.5 moles × 3 moles) ÷ 7 moles
                      X  =  0.6428571 moles of Propane
Or rounded to two significant figures,
                      X  =  0.64 Moles of Propane
 
        
        
        
Answer:
800 lb of pure solvent , 1700 lb of 20% solution and 500 lb of 10% solution will be mixed to form 3000 lb of 13 % solution . 
Explanation:
3000 lb of 13% solution is required .
Total adhesive in weight = 3000 x .13 = 390 lb of adhesive 
Available = 500 lb of 10% solution = 50 lb of adhesive 
Rest = 390 - 50 = 340 lb required . 
rest mass of solution = 3000 - 500 = 2500 lb 
mass of adhesive required = 340 lb 
Let the mass  of 20% required be V 
mass of adhesive = .20 V 
.20 V = 340 
V = 1700 
rest of the volume = 2500 - 1700 = 800 lb which will be of pure solvent 
So 800 lb of pure solvent , 1700 lb of 20% solution and 500 lb of 10% solution will be mixed to form 3000 lb of 13 % solution . 
 
        
             
        
        
        
The answer is 6 ft 10 inches in millimeters (mm) is 0.833 ft.
Given,
The center of the school's basketball team is 6 ft 10 inches tall.
We have to convert the height of the player from feet and inches to feet.
Using the conversion factor,
1 ft = 12 inches
or, 12inches/ 1 ft
Converting 6ft 10 inches to ft, we get;
10 inches × 1 ft/ 12inches
= 0.833 ft
Therefore 6 ft 10 inches in millimeters (mm) is 0.833 ft.
Unit conversion is a method in which we multiply or divide with a particular numerical factor and then finally round off to the nearest significant digits.
To learn more about Millimeter and Unit conversions, visit: brainly.com/question/26371870
#SPJ4
 
        
             
        
        
        
Answer:
1) d = 2.4 g/cm³
2) m = 25 g
3) v = 126.7 cm³
Explanation:
Given data:
Mass of material = 24 g
Volume of material = 10 cm³
Density of material = ?
Solution:
Formula:
d = m/v
by putting value,
d = 24 g / 10 cm³
d = 2.4 g/cm³
2) Given data:
Density of material = 5 g/cm³
Volume of material = 5 cm³
Mass of material = ?
Solution:
Formula:
d = m/v
5 g/cm³ = m / 5 cm³
m = 5 g/cm³×5 cm³
m = 25 g
3)Given data:
Density of material = 3 g/cm³
Mass of material = 380 g
Volume of material =  ?
Solution:
Formula:
d = m/v
3 g/cm³ = 380 g / v
v = 380 g /3 g/cm³
v = 126.7 cm³
 
        
             
        
        
        
Answer:
B 
Explanation:
Trust me I've had problems like these