The liter is the base metric unit for measuring volume
Answer:
M₂ = 0.08 M
Explanation:
Given data:
Initial volume = 25.0 mL
Initial molarity = 0.500 M
Final volume = 150.0 mL
Final molarity = ?
Solution:
Formula:
M₁V₁ = M₂V₂
0.500 M × 25.0 mL = M₂ × 150.0 mL
M₂ = 0.500 M × 25.0 mL / 150.0 mL
M₂ = 12.5 M.mL /150.0 mL
M₂ = 0.08 M
Answer:
The explanation is provided below
Explanation:
This is possible because proteins result from the polymerization of amino acids, which have repeated arrangements of amino acid s residue in the long polypeptide chain. Also, the bonding force resulting between hydrogen bonds, amide hydrogen and the carbonyl oxygen of the peptide backbone makes it stable, flexible and dimensional.
The heat of combustion for methanol is 727 kj/mol
<em><u>calculation</u></em>
calculate the moles of methanol (CH3OH)
moles = mass/molar mass
molar mass of methanol = 12 +( 1 x3) +16 + 1= 32 g /mol
moles is therefore= 64.0 g / 32 g/mol = 2 moles
Heat of combustion is therefore = 1454 Kj / 2 moles = 727 Kj/mol
you can use stoichiometry which is taking the number in from of each substance and using it as a molar ratio(ones that don't have a number actually have a 1 in front
so 2AgNO3 + 1 Zn -> 2 Ag + Zn (NO3)2
The ratio is of moles of Zn to moles of Silver is 1:2 so for every 1 mole of Zn there's 2 moles of Ag
1.3 × 2 = 2.6 moles of Ag are made