Centrifugation is usually use to separate different components of blood.
Answer:
A. 2-pentyne is the answer.
Answer:
Compound
Explanation:
Table sugar, or sucrose, is a compound because it's formed when two or more elements are joined together. Its chemical formula is C12H22O11, and it contains carbon, hydrogen and oxygen.
Answer:
Explanation:
2 NH4I + Pb(NO3)2 = PbI2 + 2 NH4NO3
2 mol 1 mol
x ml 751 ml
0.550 M 0.380 M
0.380 mol/1000 ml x 751 ml = 0.285 mol Pb(NO3)2
0.285 mol Pb(NO3)2 x 2 mol NH4I/1 mol Pb(NO3)2=0.571 mol NH4I needed
0.571 mol NH4I/0.550 mol/1000 ml=1038 ml
5000 units of antigens are present in 0.5 mL of the mumps virus vaccine.
Volume of the vaccine after dilution with water = 2 mL
0.5 mL has 5000 units antigen. So when 0.5 mL was diluted to 2 mL, the final vaccine after dilution would contain 5000 units of antigen.
Units of antigen present in 1 mL vaccine sample
= 
Therefore, 2500 units of the antigen will be present in each milliliter, if 0.5 mL of the vaccine is diluted to 2 mL with water for injection.