You would weigh the zinc with a weight, Zinc is a mineral so wether it's a solid or a liquid you would measure it with a zinc.
Answer:
mass of carbon-dioxide = 0.262 g
Explanation:
Firstly, write the chemical equation of the reaction and balance the equation accordingly.
2NaHCO3(aq) → CO2(g) + H2O(l) + Na2CO3(aq)
Calculate the molecular mass of baking soda
molar mass of baking soda = 23 + 1 + 12 + 48 = 84 g
2 moles of baking soda = 2 × 84 = 168 g
molar mass of CO2 = 12 + 32 = 44 g
if 168 g of baking soda produces 44 g of carbon-dioxide
1 g of baking soda will produce ? grams of carbon-dioxide
cross multiply
mass of carbon-dioxide = 44/168
mass of carbon-dioxide = 0.2619047619
mass of carbon-dioxide = 0.262 g
It basically works like this:
You dry out the food
put it in this ceramic oven thingy surrounded with water
burn the food
the water will heat up
measure the water temperature in f
= calories
Calorimetry is the science or act of measuring changes in state variables of a body for the purpose of deriving the heat transfer associated with changes of its state due, for example, to chemical reactions, physical changes, or phase transitions under specified constraints.
in this case, you're finding the amount of energy is contained within it when combusted
Answer is: i<span>t can be endothermic when the amount of energy needed to break the intermolecular forces in the solute is larger than the amount of energy given off by formation of intermolecular forces in the mixture, so solution must be heated.
In ideal solution </span><span> the forces of attraction between the solute-solute and the solvent-solvent and solute-solvent molecules are the same.</span>
Answer:
01:58
Explanation:
Martes, Marzo 23, 2021 (GMT-3)
