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a volume of 42.5ml 0.125M KOH is needed to neutalize completely 37.2ml of H3PO4 solution. Find the molar concentation of H3PO4?
1. 1 answer
2. 1,029 views
Calculate the mass concentrated in gdm3 of the ion Cl- in 0.2M dm3 sodium chloride solution.?
1. 1 answer
2. 670 views
The production of fruit juice at a free energy change of -345 KJ/mok and equilibrium constant of 3.66×10^12 occurred at a
1. 1 answer
2. 471 views
A sound pulse sent vertically downward into the earth is reflected from two different ways of the earth such that echoes are
1. 3 answers
2. 1,120 views
A piece of zinc was added to 1000 cm3 of 0.2M hydrochloric acid. After effervescence had stopped. 28 cm3 of the resulting
1. 1 answer
2. 604 views
List 15 different attitudes that makes a person a scientist?
1. 3 answers
2. 459 views
The volume of the region bounded by the y-axis, y=4 and y=x²?
1. 2 answers
2. 431 views
Which of the following statement correct aqueous solution of oxides of group 1element Li,Na,k etc are a) basic to
1. 1 answer
2. 516 views
An archer standing on a cliff 48m above the level field below shoots an arrow at an angle of 30° above the horizontal with a
1. 2 answers
2. 2,934 views
given that 15.00cm3 of H2SO4 was required to completely neutralise 25.00cm3 of 0.125 mole per dm3 of NaOH. calculate the molar
1. 2 answers
2. 733 views
a car starts from rest at a check point A and comes to rest at the next check point B, 6km away, in 3min it has first a uniform
1. 4 answers
2. 1,482 views
had a stray dog not have given them away.what's the grammatical name n function of the sentence?
1. 14 answers
2. 6,148 views
A solid weighs 0.040N in air and 0.024N when fully immersed in a liquid density 800kg. Calculate the volume of the solid
1. 1 answer
2. 834 views
S=(3i + 5j)T=(xi + yj), AND: S + 2t= 4i + 5j Find The Value Of X And Y?
1. 1 answer
2. 427 views
(27^x multiply by 3^1-x) divided by 9^2x?
1. 1 answer
2. 405 views
ABC is a right angled triangle on a horizontal ground. AD is a vertical tower. BAC is 90 degrees, ACB is 35 degrees and ABD is
1. 2 answers
2. 948 views
How far from a cliff should a boy stand in order to hear the echo of his clap 0.9s later? (Speed of sound in air = 330 ms-1)?
1. 1 answer
2. 714 views
find the total area of the surface of a solid hemisphere of diameter 6.6?
1. 2 answers
2. 769 views

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