Four people weigh a standard mass of 10.00 g on the same balance. The set of readings suggest measurements that are neither precise <span>nor accurate is the one with less mass</span>
Answer:
Explanation:
(a)The first liquid phase temperature required at 183°C
(b)By drawing a tie line and intersection with the liquidus line, the composition of the first liquid deduced is
61.8wt% of sand
38.2wt% of Pb
(c)By studying the diagram, phase diagram is on liquidus line, then
The complete melting point temperature of alloy is 260°C
(d)If a tie line is drawn it is deduced that thecomposition of the last solid remaining prior to complete melting is 13wt% of Sn
Conc = moles / Vol you have C but need to find moles
moles KCl = mass / molar mass
25 g / 74.55 g,p;
0.335 moles
So rearrange the formula to find volume. Vol = moles / Conc
0.335 moles / 0.750 mol / L = 0.447 L or 447 mL
The answer in this question is 447 mL.
Answer:
i filled out the image to help you :3
Explanation: