It is a covalent compound
Answer:
3.55atm
Explanation:
We will apply Boyle's law formula in solving this problem.
P1V1 = P2V2
And with values given in the question
P1=initial pressure of gas = 1.75atm
V1=initial volume of gas =7.5L
P2=final pressure of gas inside new piston in atm
V2=final volume of gas = 3.7L
We need to find the final pressure
From the equation, P1V1 = P2V2,
We make P2 subject
P2 = (P1V1) / V2
P2 = (1.75×7.5)/3.7
P2=3.55atm
Therefore, the new pressure inside the piston is 3.55atm
Answer:
1,869.97 grams of Be(NO3)2
Explanation:
Be(NO3)2 = Be N2 O6
Be=9.012182g/mole
N2=28.0134g/mole
O6=96g/mole
therefore Be(NO3)2 gives you 187.56g in one mole
so 9.97 moles means there is 9.97 times more
9.97mole Be(NO3)2 * 187.56g Be(NO3)2/1mole Be(NO3)2 = 1,869.97g of Be(NO3)2
Answer:
Genotypes are the genetic composition of an organism. Phenotype is the physical composition of an organism.
Explanation:
Ba(OH)2 dissociate according to the following equation
Ba(OH)2----> Ba 2+ + 2OH-
Moles of Ba(OH)2 = 4.02 /171(molar mass of Ba(OH)2 )= 0.0235 moles
by use of mole ratio of Ba(OH)2 to OH- which is 1:2 the moles of OH = 0.0235 x 2=0.047 moles in one liter = 0.047/1000= 4.7 x10^-5
POh=- log (OH-)
that is -log (4.7 x10^-5) = 4.34
Ph= 14 - POH
PH is therefore = 14 - 4.34 = 9.66
