Answer:
76 ml
Explanation:
The complete question is attached in the image.
The volume of a liquid is the amount of space that the liquid occupies or contains. Since for a liquid, it takes the shape of the container, when measuring the volume, we just measure the space occupied by the liquid in the container.
From the image, when determining the volume, we are to use the value of the lower meniscus. Hence the volume of the liquid is gotten to be 76 ml
Answer:
7
Explanation:
You have to divide 14 by 2 to find the unit rate/constant of proportionality.
Idk really know how to solve that sorry I'm only in high school
I don’t know I’m just answering for points I don’t know 12
Given parameters:
Mass of H₃PO₄ = 49g
Unknown:
Number of moles = ?
Solution:
To find the number of moles of a given specie;
number of moles = ![\frac{mass}{molar mass}](https://tex.z-dn.net/?f=%5Cfrac%7Bmass%7D%7Bmolar%20mass%7D)
Molar mass = 3(1) + 31 + 4(16) = 98g/mol
Input the parameters and solve;
Number of moles =
= 0.5mole
The number of moles is 0.5mole