Molarity = mol/L
500 mL = 0.5 L
342.34 g/mol * 0.462 mol/L = 158.16 g/L
158.16 g/L * 0.5 L = 79.1 g of sucrose is needed to create a 0.462 M solution.
The small part in the center of the atom is called a nucleus
Answer:
Three.
Explanation:
When counting the number of significant figures in a decimal number, you start counting from the right of the decimal point.
0
.00203
Counting from left to right from the decimal point , there are 5 digits.
However, the zeroes before any natural number is not counted as a significant figure.
0.00
203
Thus, there are
3
significant figures ie. 203.
Note: any other numbers added to the right of
0.00203
is also counted as a significant number.
eg.
0.002031
has 4 significant figures.
eg.
0.002030
has 4 significant figures.
Answer: 5.844 grams of NaCl needed to make solution.
Explanation:
