Mole to Gram Conversions:Many times chemists are interested in the number of atoms that react in a chemical reaction. Atoms are very small, so reactions use many of them resulting in a large number. To simplify this, chemists use the mole which is equal to 6.02×1023 atoms...
Molecules:Molecules are small particles of a substance made from two or more atoms. If the atoms come from different elements, the molecule will be called a compound. Molecules can have as few as two atoms or hundreds of atoms.Answer and Explanation: ...
If you make a solution of 2 g of sucrose in 100 mL of water, which is the solvent and which is the solute? Both sucrose and water are polar molecules. When they are mixed, the polar water molecules surround and attract the negative and positive areas on the polar sucrose molecules, pul...
How many molecules are in 4.2 x 10-1 grams of aspirin, C9H8O4? How many molecules of aspirin are present in a tablet of 325 mg? (formula weight of aspirin = 180.157 g/mol) If the molar mass of a substance is 34.1 g...
The need to limit antibiotic therapy due to the spreading resistance of pathogenic microorganisms to these medicinal substances stimulates research on new therapeutic agents, including the treatment and prevention of animal diseases. This is one of the g
in structure and function among the family members21. Activation of these regulators occurs in response to oxidative stress and heavy metals or small molecules, e.g., antibiotics, binding to the effector domain22. Well-known members of the MerR family are the transcriptional regulators BmrR from...
(a) According to the stoichiometry (molar ratios) of the balanced reaction (Q2), how many moles of oxygen molecules are required for each mole of sucrose in respiration? (b) How many moles of O2 are required to generate 870...
How many molecules are present in 4NH_{3} ? If you added 0.1 M NaOH to 1 M HCO2H a few millimeters at a time, what would happen? Datomic carbon dioxide gas CO_2 has a molar mass of 44.01 g/mol and is at a tem...
From this point, G3P is phosphorylated in a step that also produces NADH from the oxidized form NAD+, and then the two phosphate groups are given up to ADP molecules in subsequent rearrangement steps to produce two ATP molecules along with the end carbon product of glycolysis, pyruvate. ...
A microscopic view of the elements and molecules in a solution can help provide a better idea of how molecules behave when they are in close proximity with other compounds, and can help explain some of the properties of solutions and mixtures....