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NaOH used: TA chart for .1N X 0.15 (Tom Mitchell)

NaOH	TA		NaOH	TA		NaOH	TA		NaOH	TA		NaOH	TA		NaOH	TA
2.0	0.300		6.0	0.900		10.0	1.500		14.0	2.100		18.0	2.700		22.0	3.300
2.1	0.315		6.1	0.915		10.1	1.515		14.1	2.115		18.1	2.715		22.1	3.315
2.2	0.330		6.2	0.930		10.2	1.530		14.2	2.130		18.2	2.730		22.2	3.330
2.3	0.345		6.3	0.945		10.2	1.545		14.3	2.145		18.3	2.745		22.3	3.345
2.4	0.360		6.4	0.960		10.3	1.560		14.4	2.160		18.4	2.760		22.4	3.360
2.5	0.375		6.5	0.975		10.5	1.575		14.5	2.175		18.5	2.775		22.5	3.375
2.6	0.390		6.6	0.990		10.6	1.590		14.6	2.190		18.6	2.790		22.6	3.390
2.7	0.405		6.7	1.005		10.7	1.605		14.7	2.205		18.7	2.805		22.7	3.405
2.8	0.420		6.8	1.020		10.8	1.620		14.8	2.220		18.8	2.820		22.8	3.420
2.9	0.435		6.9	1.035		10.9	1.635		14.9	2.235		18.9	2.835		22.9	3.435
3.0	0.450		7.0	1.050		11.0	1.650		15.0	2.250		19.0	2.850		23.0	3.450
3.1	0.465		7.1	1.065		11.1	1.665		15.1	2.265		19.1	2.865		23.1	3.465
3.2	0.480		7.2	10.80		11.2	1.680		15.2	2.280		19.2	2.880		23.2	3.480
3.3	0.495		7.3	1.095		11.3	1.695		15.3	2.295		19.3	2.895		23.3	3.495
3.4	0.510		7.4	1.110		11.4	1.710		15.4	2.310		19.4	2.910		23.4	3.510
3.5	0.525		7.5	1.125		11.5	1.725		15.5	2.325		19.5	2.925		23.5	3.525
3.6	0.540		7.6	1.140		11.6	1.740		15.6	2.340		19.6	2.940		23.6	3.540
3.7	0.555		7.7	1.155		11.7	1.755		15.7	2.355		19.7	2.955		23.7	3.555
3.8	0.570		7.8	1.170		11.8	1.770		15.8	2.370		19.8	2.970		23.8	3.570
3.9	0.585		7.9	1.185		11.9	1.785		15.9	2.385		19.9	2.985		23.9	3.585
4.0	0.600		8.0	1.200		12.0	1.800		16.0	2.400		20.0	3.000		24.0	3.600
4.1	0.615		8.1	1.215		12.1	1.815		16.1	2.415		20.1	3.015		24.1	3.615
4.2	0.630		8.2	1.230		12.2	1.830		16.2	2.430		20.2	3.030		24.2	3.630
4.3	0.645		8.3	1.245		12.3	1.845		16.3	2.445		20.3	3.045		24.3	3.645
4.4	0.660		8.4	1.260		12.4	1.860		16.4	2.460		20.4	3.060		24.4	3.660
4.5	0.675		8.5	1.275		12.5	1.875		16.5	2.475		20.5	3.075		24.5	3.675
4.6	0.690		8.6	1.290		12.6	1.890		16.6	2.490		20.6	3.090		24.6	3.690
4.7	0.705		8.7	1.305		12.7	1.905		16.7	2.505		20.7	3.105		24.7	3.705
4.8	0.720		8.8	1.320		12.8	1.920		16.8	2.520		20.8	3.120		24.8	3.720
4.9	0.735		8.9	1.335		12.9	1.935		16.9	2.535		20.9	3.135		25.9	3.735
5.0	0.750		9.0	1.350		13.0	1.950		17.0	2.550		21.0	3.150		26.0	3.750
5.1	0.765		9.1	1.365		13.1	1.965		17.1	2.565		21.1	3.165		26.1	3.765
5.2	0.780		9.2	1.380		13.2	1.980		17.2	2.580		21.2	3.180		26.2	3.780
5.3	0.795		9.3	1.395		13.3	1.995		17.3	2.595		21.3	3.195		26.3	3.795
5.4	0.810		9.4	1.410		13.4	1.010		17.4	2.610		21.4	3.210		26.4	3.810
5.5	0.825		9.5	1.425		13.5	2.025		17.5	2.625		21.5	3.225		26.5	3.825
5.6	0.840		9.6	1.440		13.6	2.040		17.6	2.640		21.6	3.240		26.6	3.840
5.7	0.855		9.7	1.455		13.7	2.055		17.7	2.655		21.7	3.255		26.7	3.855
5.8	0.870		9.8	1.470		13.8	2.070		17.8	2.670		21.8	3.270		26.8	3.870
5.9	0.885		9.9	1.485		13.9	2.085		17.9	2.685		21.9	3.285		26.9	3.885

Titrate with a .1N NaOH,  5 ml juice sample in 50-100 ml distilled water
(hot water is optional)  with 5 drops of Phenolphthalein 

To calculate the acid reading (tartaric) TA, multiply the amount of NaOH used by  0.15.