B false i think, i may be wrong
Answer:
Explanation:
Bohrium's most stable isotope, bohrium-270, has a half-life of about 1 minute. It decays into dubnium-266 through alpha decay. Since only a few atoms of bohrium have ever been made, there are currently no uses for bohrium outside of basic scientific research.
Answer:
the number of moles is 0.279
Explanation:
The computation of the number of moles of calcium nitrate, is shown below;
We know that
Number of moles = mass of substance ÷ molecular weight
= 45.8 g ÷ 164.088
= 0.279moles
hence, the number of moles is 0.279
We simply applied the above formula so that the correct value could come
Answer:
combustion or/and oxidation
Explanation:
Answer is: the osmotic pressure of aqueous solution of sucrose is 6.032 atm.<span>
c(C</span>₁₂H₂₂O₁₁) = 0.237 mol/L; concentration of solution.
T(C₁₂H₂₂O₁₁) = 37°C = 310.15 K; temperature in Kelvins.
R = 0.08206 L·atm/mol·K; universal gas constant.
π = c(C₁₂H₂₂O₁₁) · T(C₁₂H₂₂O₁₁) · R.
π = 0.237 mol/L · 310.15 K · 0.08206 L·atm/mol·K.
π = 6.032 atm · 101.325 kPa/atm = 611.2 kPa