Q19. A pupil used a sensor to record the change in pH of 10 cm of an acid solution when an alkali solution was added a little at a time. The concentrations of the alkali and acid solutions were fixed.
His results are shown in the table below.
volume of alkali added (c pH of resulting mixt
0.0
5.0
2.0
5.0
5.0
6.0
5.5
8.0
6.0
7.0
120
8.0
8.5
16.0
90
90
200
Use his results to draw a graph on the grd below.
Label the axes.
Plot the points.
Draw a smooth curve.​

b

step-by-step explanation: sorry if not correct becaude my brother is loud and i could not think!

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to