I am pretty sure it is Vitamin A... but I could be wrong. Sorry if it is wrong.
The mass of HCHO2 and NaCHO2 to be added to the buffer solution are 0.23g and 0.44g respectively
Data;
- Volume of solution = 260mL
- conc. of HCHO2 = 2.5*10^-2M
- conc. of NaCHO2 = 2.5*10^-2M
<h3>Mass of Reagent Added</h3>
To calculate the mass of reagent added, let's start with HCHO2
The mass of HCHO2 to be added is the number of moles of HCHO2 multiplied by it's molar mass.
The mass of NaCHO2 to be added in the buffer solution is
The mass of HCHO2 and NaCHO2 to be added to the buffer solution are 0.23g and 0.44g respectively
Learn more about buffer solution here;
brainly.com/question/22390063
Answer:
Nucleus
Explanation:
The atom is mainly formed by three particles: Protons, neutrons and electrons. While the first two are inside of the nucleus, the latter orbit around it. Also, protons and neutrons have a relative mass of 1, compared to the electrons which mass is only 0.0005.
Explanation:
Let relative ratio of one isotope (62.94 u) be X
Then, relative ratio of other isotope (64.93) will be (1 - X)
Now,
(62.94)x + (64.93)(1 - x) = 63.55
1.99x = 1.38
X = 0.69
<u>Relative Abundance</u> :
(62.94 u) isotope = 69 %
(64.93 u) isotope = 31 %
Answer:
236588 cm3
Explanation:
If a large recipe calls for 250 quarts of milk, there are 236588 cm3.
Multiply the volume value by 946.353
