O: 1*2 = 2*1
<span>H 2 + 2 = 2*2 </span>
<span>answer C hope you get it right</span>
Answer:
m C2H5OH = 191.52 g
Explanation:
∴ %v/v C2H5OH = ( v C2H5OH / v sln)×100
⇒ 48 proof = (2) (%v/v C2H5OH)
⇒ 48/2 = %v/v C2H5OH
⇒ 24 = %v/v C2H5OH
⇒ 24/100 = v C2H5OH / v sln = 0.24
∴ v sln (gin) = 1.00 L
⇒ v C2H5OH = ( 0.24 )( 1.00 L )
⇒ v C2H5OH = 0.24 L = 240 mL
⇒ m C2H5OH = (240 mL)(0.798 g/mL)
⇒ m C2H5OH = 191.52 g
D
Avogadro's number allows us to measure the amount of atoms or molecules in one mole of a substance.
Answer:
Carbon tetrachloride would be 2.2 fold heavier than water
Explanation:
Carbon tetrachloride (2.20g/mL) is denser than water (1.00g/mL)
<u>Given:</u>
Moles of gas, n = 1.50 moles
Volume of cylinder, V = 15.0 L
Initial temperature, T1 = 100 C = (100 + 273)K = 373 K
Final temperature, T2 = 150 C = (150+273)K = 423 K
<u>To determine:</u>
The pressure ratio
<u>Explanation:</u>
Based on ideal gas law:
PV = nRT
P= pressure; V = volume; n = moles; R = gas constant and T = temperature
under constant n and V we have:
P/T = constant
(or) P1/P2 = T1/T2 ---------------Gay Lussac's law
where P1 and P2 are the initial and final pressures respectively
substituting for T1 and T2 we get:
P1/P2 = 373/423 = 0.882
Thus, the ratio of P2/P1 = 1.13
Ans: The pressure ratio is 1.13
