Lithium Bromide : LiBr.
Molar mass of lithium bromide : 86.845 g/mol.
To find the mass of 2.6 mol of lithium bromide, simply multiply in order to cancel out the moles : 2.6 mol * 86.845 g / 1 mol = 225.8 grams.
<h3>
Answer:</h3>
0.002 moles
<h3>
Explanation:</h3>
Concept tested: Molarity
We are given;
- Volume of HCl as 20 ml or 0.02 L
- Molarity of HCl solution as 0.10 M
We are required to calculate the number of moles of HCl
What is molarity?
- Molarity is the concentration of a solution in moles per liter
How is it calculated?
- It calculated by dividing number of moles by volume;
- Molarity = Number of moles ÷ Volume
To calculate the number of moles we rearrange the formula;
Moles = Molarity × Volume
In this case;
Moles of HCl = 0.10 M × 0.02 L
= 0.002 moles
Therefore, the number of moles of HCl is 0.002 moles
Volume of liquids are measured in experiments. The volume is measured by taking reading that coincides with the lower meniscus of the liquid. There are several measuring devices used in laboratory such as beakers, measuring cylinders, volumetric pipets etc. volume measured from volumetric pipets are considered to be more precise than from measuring cylinders because they are simple, and its long neck lowers the chances of error in looking for the meniscus.
The sedimentary rock formed from tiny particles of clay in very thin,flat layers of ice is called shale
The answer is C because the toy car goes 2 meters per each second which in the end 2x5=10.
