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What is the purpose of repeating the process heating cooling and weighing until the mass is almost constant in the reaction between hydrochloric acid and zinc?
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What is the purpose of repeating the process of heating cooling and weighing until the mass is almost constant?
to drive any water that may be bound to the compound
What is the Definition of the weighing range of a balance?
definition of weighing range
How do you show that catalysts are not consumed or chemically altered during a chemical reaction?
The catalyst, and therefore its mass, will not have reduced in quantity during the reaction. By separating the catalyst from the products after reaction and weighing it, decrease in mass should be negligible, if applicable, and associable with loss through transfer from/to locations, proving that it has not reacted.
How would a synthesis reaction cause the mass of a product to be higher than the metal in a crucible?
Heating a metal in a crucible can cause the metal to react with the surrounding gases. thus, when weighing the metal after heating, the mass increases because of the addition of the gaseous elements
What is the de Broglie wavelength in meters of a baseball weighing 145 and traveling at 152?
You can use De' Broglie's equation. I think it is wavelength = plank's constant/mass of the object *velocity.velocity is unknown in this case, m= 154g and wavelength is 0.450*10-90.450*10-9 = look up the value of plank's constant/ 0.145 kg* Velocity.Rearrange the equation to get velocity of an object.
A spring stretches 11 centimeters from its equilibrium position when an object weighing 29 newtons is hung from it. What is the spring constant?
The spring constant is 263.6363... repeating Newtons per metre.
What is the purpose of repeating the process of heating cooling and weighing until the mass is almost constant?
to drive any water that may be bound to the compound
A 15.7g sample of sodium carbonate is added to a solution of acetic acid weighing 18.9 g and after reaction weighing 26.3g what is mass of carbon dioxide?
8.7g
How can you tell when a constant mass is reached?
the mass doesn't change to reach it, you keep reheating, cooling and weighing
How much does 355 cubic liters weigh?
The answer depends on what you are weighing. Helium weighs less than water if the volume is constant.
What is the value of the constant c in the weight formula w equals C divided by r squared where are is the distance from the center of the earth?
'C' can't be a constant. It has to be ( GM1M2 ), with G = the universal gravitational constant M1 = mass of the earth M2 = mass of the thing you're weighing
WHAT OR DEFINE constant weight?
The term “constant weight” , used in relation to the process of drying or the process of ignition, means that the two consecutive weighing do not differ by more than 0.5 mg, the second weighing being made after an additional period of drying or ignition under the specified conditons appropriate to the nature and quantity of the residue (1 hour is usally suitable
What force must be reached in order for a sprinter weighing 100 kg to reach a velocity of 10 meters per second in 3 seconds?
Assuming - without any justification - that the sprinter starts from a standstill, it is 333.33...(repeating) newtons.
Steps for weighing an object?
Obtain an appropriate weighing device. Make sure the device is calibrated properly. Perform the weighing by placing the object on top of the weighing device.
Is it said weighing a cake or scaling a cake?
Weighing (US)
What is the Definition of the weighing range of a balance?
definition of weighing range
The mean weight of a football team is 115 kg. if two new recruits weighing 125 kg and 130 kg joind the squad of 18 players what is the new mean weight of the squad?
I think it might b 123.3 (3 repeating)
