Alab technician needs to make 1.00 l of an aqueous buffer having a ph of 4.15, and she has only formic acid, sodium hydroxide, and water to work with. the ka of formic acid is 1.70 x 10-4. her reasonable plan is to add the necessary reagents to about half a liter of water and then dilute the resulting solution to 1.000 l by adding water.

battery with hi vtge high val resist in series

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.