ITS ABOUT DRIVE
ITS ABOUT POWER
WE STAY HUNGRY
WE DEVOUR
PUT IN THE WORK
PUT IN THE HOURS ⌚
AND TAKE WHATS OURS
Answer:
0.1159 M
Explanation:
Using the formula below:
CaVa = CbVb
Where;
Ca = concentration/molarity of acid (M)
Cb = concentration/molarity of base (M)
Va = Volume of acid (mL)
Vb = volume of base (mL)
According to this question, the following information were given:
Ca = ?
Cb = 0.2831 M
Va = 26.86 mL
Vb = 11.00 mL
Using CaVa = CbVb
Ca × 26.86 = 0.2831 × 11
26.86Ca = 3.1141
Ca = 3.1141 ÷ 26.86
Ca = 0.1159
The molarity of the acid (H2SO4) solution is 0.1159 M
Answer:- False.
Explanations:- One mole of any gas at STP occupies 1 volume of 22.4 L.
STP means standard temperature and pressure. Standard temperature is 273 K and standard pressure is 1 atm.
Here, in the statement the given temperature is 298 K which is not the standard temperature and so the volume of 1 mole of the gas will not be 22.4 L.
The volume could be calculated using ideal gas equation:
PV = nRT
R is the universal gas constant and it's value is .
let's plug in the values and calculate the volume for 1 mole of the gas:
V = 24.5 L
The volume for 1 mol of the gas at 298 K and 1 atm is 24.5 L and hence the statement is false.
Answer: i think it is 144.16
Explanation:
Answer: bạn viết phương trình Phenol + NaOH
=> nNaOH = nPhenol = 0,2 mol
m Phenol = 0,2x94 = 18,8 gam
%mPhenol = 18,8/28,9% = 65,05
Explanation: