If sock type A is pulled first, sock type B second, and sock type C third, the fourth sock type must match one of A, B, or C.
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Answer: 1 mol of potassium phosphate.
Explanation:
Find the molar mass of potassium phosphate.
Equation of potassium phosphate = K3PO4
The molar mass of K = 39.10 g/mol, P = 30.97 g/mol, O = 16.00 g/mol (use periodic table for these values).
Then add them up together based off of the equation.
3(39.10 g/mol) + 30.97 g/mol + 4(16.00 g/mol) = 212.27 g/mol
Multiply the 212.26 grams by the molar mass (unit conversion method).
= 1.00 mol
There is 1 mol of potassium phosphate.
Answer:
1.58 M
Explanation:
is 1.66 m concentration.
Which means that 1.66 moles of are present in 1 kg of the solvent, water.
Mass of water = 1 kg = 1000 g
Moles of = 1.66 moles
Molar mass of = 98.079 g/mol
The formula for the calculation of moles is shown below:
Thus,
Total mass = 1000 g + 162.81114 g = 1162.81114 g
Density = 1.104 g/mL
Volume of the solution = Mass / Density = 1162.81114 / 1.104 mL = 1053.27 mL = 1.05327 L
Considering:-
<u>Molarity = moles/ Volume of solution = 1.66 / 1.05327 M = 1.58 M </u>