Answer: 36.53g
Explanation:
First we need to find the amount of NaCl that dissolves in 1L of the solution that produced 5M of NaCl
Molarity = 5M
MM of NaCl = 58.45
Molarity = Mass conc (g/L) / MM
Mass conc. (g/L) of NaCl = Molarity x MM
= 5 x 58.45 = 292.25g
Next, we need to find the amount that will dissolve in 125mL(i.e 0.125L)
From the calculations above,
292.25g of NaCl dissolved in 1L
Therefore Xg of NaCl will dissolve in 0.125L of the solution i.e
Xg of NaCl = 292.25 x 0.125 = 36.53g.
Therefore 36.53g of NaCl will dissolve in 125mL of the solution
Answer:
One of the most common methods used today to determine the composition of stars is <u>spectroscopy</u>.
Explanation:
Spectroscopy is the study of the interaction between matter and electromagnetic radiation as a function of the wavelength or frequency of the radiation.
Answer:
Calcium oxide + strontium hydroxide → Portlandite + strontium oxide.
ie... Cao+ Sr(oH)2 = CA (oH)2+ Sro
We use the following formula for calculating the density:
p = m/v
Where:
m = mass
v = volume
So, we have:
p = 46 /5
p = 9,2 g/cm³
<em>Transferases</em> - C) Catalyze the movement of a functional group from one molecule to another
<em>Isomerases</em> - D) Catalyze structural changes in a molecule
<em>Ligases</em> - B) Catalyze reactions involving the joining of two substrates
<em>Oxidoreductases</em> - A) Catalyze reduction reactions