All categories

4 years ago

How many water molecules are need to break down an oligosaccharide that contains 10 glucose units?

Chemistry

1 answer:

mestny [16]4 years ago

3 0

Answer is 10 units of water molecules.

You might be interested in

at 55 years what mass remains of a 200.0 g sample of a radioactive isotope with a half life of 10.0 years

Harman [31]

Answer:

4.419 g

Explanation:

55 years is 5.5 half lives

200 g * (1/2)^5.5 = 4.419 g

3 0

1 year ago

What are the useful of carbonate

Shalnov [3]

Answer:

Carbonates are widely used in industry, such as in iron smelting, as a raw material for Portland cement and lime manufacture, in the composition of ceramic glazes, and more.

7 0

3 years ago

A gas has a volume of 1.8Lat−26◦Cand 147 kPa. At what temperature would the gas occupy 1.33 L at 217 kPa?

miss Akunina [59]

Answer: At temperature of 269 K the gas would occupy 1.33 L at 217 kPa

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas = 147 kPa

$P_2$ = final pressure of gas = 217 kPa

$V_1$ = initial volume of gas = 1.8 L

$V_2$ = final volume of gas = 1.33 L

$T_1$ = initial temperature of gas = $-26^oC=273-26=247K$

$T_2$ = final temperature of gas = ?

Now put all the given values in the above equation, we get:

$\frac{147kPa\times 1.8L}{247K}=\frac{217kPa\times 1.33L}{T_1}$

$T_2=269K$

Thus at 269 K temperature the gas would occupy 1.33 L at 217 kPa

3 0

4 years ago

Lithium bromide is a what?

Norma-Jean [14]

Answer:

atom

Explanation:

look on the periodic table

8 0

3 years ago

An atom of 105In has a mass of 104.914558 amu. Calculate the binding energy in MeV per NUCLEON. Enter your answer with 3 signifi

joja [24]

Answer:

8.46

Explanation:

Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.

Also, atomic number of I = 549

Thus, the number of protons = 49

Mass number is the number of the entities present in the nucleus which is the equal to the sum of the number of protons and electrons.

Mass number = Number of protons + Number of neutrons

105 = 49 + Number of neutrons

Number of neutrons = 56

Mass of neutron = 1.008665 amu

Mass of proton = 1.007825 amu

Calculated mass = Number of protons*Mass of proton + Number of neutrons*Mass of neutron

Thus,

Calculated mass = (49*1.007825 + 56*1.008665) amu = 105.868665 amu

Mass defect = Δm = |105.868665 - 104.914558| amu = 0.954107 amu

The conversion of amu to MeV is shown below as:-

1 amu = 931.5 MeV

So, Energy = 0.954107*931.5 MeV/atom = 888.750671 MeV/atom

Also, 1 atom has 105 nucleons (Protons+neutrons)

So, Energy = 888.750671 MeV/105nucleons = 8.46 MeV/nucleon

Answer:- 8.46

8 0

3 years ago