P1 x V1 P2 x V2
______ = ________
T1 T2
1260 x 23 / 200 = 144.9
1595x V/300
144.9= 1595x V/300
144.9 x 300/1595 = v
27.25 litres
I think
The molar concentration of the solution is calculated as follows
find the moles of NaCl used to make the solution
moles = mass/molar mass
mass =7.83 g
molar mass =58.5 g/mol
moles = 7.83 g/ 58.5 g/mol = 0.134 moles
molarity ( concentration in mol/l) = number of moles/volume in liters
volume in liters = 90ml/1000 =0.09 liters
molarity is therefore = 0.134 moles/0.09 L =1.49 M
Answer:
313.5cm²
Explanation:
Given parameters:
Weight of model = 105pounds
Pressure applied on the scale by model = 2.16pounds per square inch
Unknown:
Area of her feet in cm² = ?
Solution:
Pressure is the force per unit area;
Pressure =
Input the parameters and solve;
2.16 =
105 = 2.16 x Area
Area = = 48.6in²
We need now to convert the in² to cm²
1in² = 6.45cm²
48.6in² = 48.6 x 6.45 = 313.5cm²
the answer is c
Explanation:
because c has all elements mixed together
Answer:
Explanation:
1 they use less gas because the electric engine and the gas engine work together to be more efficient and 2 the electric engiene is sometimes used as a generarot to recharge the battaries and when braking the heat generated can be turned back into power