Answer:
<h3>The answer is 13.86 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 30.5 g
volume = 2.2 cm³
We have
We have the final answer as
<h3>13.86 g/cm³</h3>
Hope this helps you
Answer:
Wall, cup, mug, plastic spoon
Explanation:
Because all of those are glass and it is important to us to make sure that if you are touching this brle careful
Explanation:
First you must calculate the number of moles in this solution, by rearranging the equation. No. Moles (mol) = Molarity (M) x Volume (L) = 0.5 x 2. = 1 mol.
For NaCl, the molar mass is 58.44 g/mol. Now we can use the rearranged equation. Mass (g) = No. Moles (mol) x Molar Mass (g/mol) = 1 x 58.44. = 58.44 g.
Answer:
C. 0.50 mol
Explanation:
Number of mole= mass /molar mass
Mass of KF is given as 29g
The molar mass of KF= 39+19= 58g/mol
No of mole= mass/ molar mass
= 29g/58g/mol
1/2 mol= 0.5 mol
Answer:
I'd Go. B. weigh everything, let the reaction happen, then weigh everything again.