Answer:
Explanation:
The equation of above line , y = 0.0005x+ 0.458
This can be compared with y = mx+c
Hence slope, m = 0.0005 and Y-intercept, c = 0.458
Or it can be plotted manually where straight line has to be drawn touching maximum number of data points. After drawing a straight linear line, we need to take any two points from the straight line and slope is calculated
Slope,
and y -intercept is calculated using extraplotting backwards such that it touches the Y-axis. the point where straight line touches Y-axis is Y-intercept (c).
Plot the average cell potentials E (y-axis) vs T (x-axis). image attached
Answer:
True: Sodium Chloride Solution will conduct Electricity.
Explanation:
When Sodium Chloride is in solid form it fails to conduct current, But when it is dissolved in water it dissociates to produce a Na⁺ and Cl⁻ ions which are current conducting between two electrodes.
NaCl ₍s₎ + H₂O → Na⁺ ₍aq₎ + Cl⁻₍aq₎
Answer:
The definition of an absolute reference frame would be that fixed reference frame that every observer would rest at all times in his/her state of motion.
Explanation:
One minus two equals negative one and three minus five equals negative two
Answer:
Mass = 12.82 g
Explanation:
Given data:
Mass of oxygen = 8.5 g
Mass of H₂S = 10.0 g
Mass of SO₂ = ?
Solution:
Chemical equation;
2H₂S + 3O₂ → 2SO₂ + 2H₂O
Number of moles of H₂S:
Number of moles = mass/ molar mass
Number of moles = 10.0 g / 34 g/mol
Number of moles =0.3 mol
Number of moles of oxygen:
Number of moles = mass/ molar mass
Number of moles = 8.5 g / 32 g/mol
Number of moles = 0.3 mol
Now we will compare the moles of SO2 with oxygen and hydrogen sulfide.
O₂ : SO₂
3 : 2
0.3 : 2/3×0.3=0.2 mol
H₂S : SO₂
2 : 2
0.3 : 0.3
The number of moles of SO₂ produced by oxygen are less so it will limiting reactant.
Mass of SO₂:
Mass = number of moles × molar mass
Mass = 0.2 mol × 64.1 g/mol
Mass = 12.82 g
