Answer:
1) There are 0.0128 moles of BBr3 present in 3.20 grams of this compound
2) There are 909.35 grams of BBr3 present in 3.63 moles of this compound
Explanation:
<u>Step 1: </u>Given data
Boron tribromide = BBr3
Molar mass of Boron = 10.81 g/mole
Molar mass of Bromide = 79.9 g/mole
Molar mass of Boron tribromide = 10.81 + 3*79.9 = 250.51 g/mole
<u>Step 2:</u> Calculating number of moles
Number of moles = mass / molar mass
Number of moles of BBr3 = 3.20 grams / 250.51 g/mole
Number of moles of BBr3 = 0.0128 moles
<u>Step 3:</u> Calculating mass
If we have 3.63 moles of boron tribromide (= BBr3)
Mass of BBr3 = number of moles of BBr3 * Molar mass of BBr3
Mass of BBr3 = 3.63 moles * 250.51 g/mole
Mass of BBr3 = 909.35 grams
Sea breeze the other person is a hundred percent write
Answer:
Phosphagen provides the needed energy for the muscle tissues which can not be immediately supplied by glycolysis or oxidative phosphorylation. They supply immediate but limited energy as sudden demands for lots of energy by the muscle tissues arise.
Explanation:
Phosphagens are high energy storage compounds majorly found in muscular tissue of animals.
They allow maintenance of the high energy phosphate stores in its normal concentration ranges which discard the problems associated with ATP-consuming reactions in these tissues as against the presence of adenosine triphosphate.
The muscle tissues are actively working and need constant supply of energy and the energy produced by glycolysis and oxidative phosphorylation might not sum up to the needs of the tissues. So therefore, phosphagens serve as a stand by mechanism for energy production for the tissues mostly during sustained muscle activity.
The man, the muscle cells' phosphocreatinine concentration is more than three times the concentration of ATP and represent a ready reserve of high energy phosphate that can be donated directly to Adenosine diphosohate to release energy.
Different organisms use different biomolecule as a phosphagen. Majority of animals use arginine as their phosphagen, chordates use creatinine, annelids use lombricine.
They all perform these similar functions described above.
Answer:
A. Physical science is the study of energy and inanimate matter. Life science is the study of living organisms.
Explanation:
Sciences can be grouped into physical science and life sciences. PHYSICAL SCIENCE is a branch of science that involves the study of energy and inanimate objects i.e lifeless. Physical science encompass the following: physics, chemistry, astronomy, geology etc.
On the other hand, LIFE SCIENCES, as the name implies, is the study of living organisms. It is also referred collectively to as BIOLOGICAL SCIENCES and it includes aspects such as biology, botany (plant), zoology (animal), microbiology (microbes), biochemistry etc.
