32.865 lbs is the weight of the concrete without the weight of the container/mold. So you're subtracting 7.79 lb that was Already Subtracted. That's where the error is.
@@michaelparionaramos4097 The pot was tared, meaning that when he took the empty pot off of the scale after the scale was zeroed, the scale reads the negative weight of the empty pot. So when he puts the pot back on to the scale when it's filled, it subtracts the weight of the pot for you. That allows you to essentially weigh ONLY the mass of concrete. Doing that means that you don't actually have to use the mass of the empty pot in the equation.
Hey Jimmy, you record the weight prior to the tare. You can see this graphic representation on the screen as we do it. As long as you note this, you can account for it in the end. There’s more than just a single way to do this.
Well with most if not all calibrated scales once you get the weight of the pot and get the tare the scale resets to 0 then once the pot is removed it would show into the negative. Example. If the pot is 8lbs and you get a tare down to 0 once the pot is removed the scale will read -8lbs if I’m not mistaken.
