Answer:
don't know just here for the points
There are 4 states of matter
1.solid
2.liquid
3.gas
4.plasma
HClO4 +NaOH -----> NaClO4 + H2O
moles of NaOH = (0.0832 x 50 ) /1000= 4.16 x10^-3 moles
since the mole ratio of HClO4 to NaOH is 1:1 the moles of HClO4 is also 4.16 x 10^-3 moles
volume of HClO4 is therefore = moles/ molarity
that is 4.16 x 10^-3mol/ 0.167 mol/L= 0.0249L
multiply by 1000 to convert to ml
0.0249 x 1000= 24.9 ml
Answer:
0.0198 M
Explanation:
Given data
- Mass of CaCl₂ (solute): 5.51 g
- Volume of solution: 2.50 L
Step 1: Calculate the moles of solute
The <em>molar mass of CaCl₂</em> is 110.98 g/mol. The moles corresponding to 5.51 g are:
5.51 g × (1 mol/110.98 g) = 0.0496 mol
Step 2: Calculate the molarity of the solution
<em>M = moles of solute / liters of solution</em>
M = 0.0496 mol / 2.50 L
M = 0.0198 M