Wiley Plus Exam 1 Questions With 100% Correct Answers 2024

Wiley Plus Exam 1 Questions With 100% Correct Answers 2024 One ml of the 0.1 M supstance-A is added to 9 mls of water, and 1ml of the dilution is added to another 9 ml of water. What is the concentration of the final dilution in molar (M), millimolar (mM), micromolar (uM), and nanomolar (nM)? - answer.001 M, 1 mM, 1000 uM, 10^6 nM How many moles of sodium hydroxide (NaOH ) are in 10 g of NaOH? - answer.25 mol How many grams of solid calcium hydroxide Ca(OH)2 are required to prepare 200 mL of a 0.05 M solution? Molar mass (formula weight) of Ca = 40.1 g/mol, O = 16.0 g/mol, and H = 1.01 g/mol. - answer.741 g T/F: some eukaryotes, such as yeast, are unicellular - answerF T/F: cells typically contain thousands of different types of molecules - answerT T/F: The three domains are the archaea (also known as archaebacteria), the bacteria, (sometimes called eubacteria) and the eukaryotes (eukarya). Classification of organisms by analysis of their genetic material (for e.g., the classification by RNA analysis performed by Carl Woese) led to the grouping of all organisms into three domains, the archaea (also known as archaebacteria), the prokaryotes (prokarya), and the eukaryotes (eukarya). - answerT T/F: with respect to energy, life obeys the laws of thermodynamics - answerT T/F: Water is considered polar because the oxygen atom carries a partial negative charge of - 0.66e, while the hydrogen atoms are each partially positive, +0.33e. Water is considered a polar molecule because the oxygen atom is much larger than the hydrogens. - answerF How do weak acids ionize - answeronly partially T/F: The buffering capacity of a weak acid is greatest when pH = pKa. - answerT Which of the major types of biomolecules is never found in a polymeric form?