Molar - Study guides, Class notes & Summaries

A gas cylinder contains exactly 15 moles of oxygen gas (O2). How many molecules of oxygen are in the cylinder? 4.01 × 10^22 molecules 6.02 × 10^23 molecules 9.03 × 10^24 molecules 2.89 × 10^26 molecules 9.03 × 10^24 molecules A sample of sugar (C12H22O11) contains 1.505 × 1023 molecules of sugar. How many moles of sugar are present in the sample? Answer without doing any calculations. 0.25 mol 0.50 mol 1.00 mol 2.50 mol 0.25 mol Use the periodic table to determ...

Portage Learning A&P 1 Module 3 Exam Questions And Answers What are the two main groups of the digestive system? - ANS 1. alimentary canal 2. accessory digestive organs What is the alimentary canal? - ANS Continuous muscular digestive tube that runs from the mouth to the anus What are parts of the alimentary canal? - ANS mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus What are the accessory organs of the digestive system? - ANS teeth, tongue, ga...

Gizmos Polarity and Intermolecular Forces 2024 | All Answers are 100% Correct

MN Dental Jurisprudence Exam 8 components of the dental record - Correct Answer-1. Personal Data 2. Patient's reasons for visit 3. Dental and medical history 4. Clinical examinations 5. Diagnosis 6. Treatment plan 7. Informed consent 8. Progress notes An adult patient's record must be kept __________. - Correct Answer-7 years beyond the last time they were seen. A minor (child) patient's record must be kept for ___________. - Correct Answer-7 years beyond the age ...

How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen? 1 mol of oxygen has fewer molecules. 1 mol of oxygen has more molecules. Each sample has the same number of molecules. The molecules cannot be compared without knowing the mass. Each sample has the same number of molecules What is the molar mass of CHCl3? 48.47 g/mol 83.92 g/mol 119.37 g/mol 121.39 g/mol 119.37 g/mol Which is the formula mass of (NH4)2SO4...

Find the molar mass of glucose? (C6 H12 O6) 6X12.01=72.06 12X1.01=12.12 6X16=96 =180.18g Find the molar mass of Al2 (SO4)3 2X26.98=53.96 3X32.07=96.21 12X16=192 = 342.17g Find the molar mass of Ba (NO3)2 1X137.33=137.33 2X14.01=28.02 6X16=96 = 261.35g Find the percentage of Oxygen in KClO3 1X39.10=39.10 48/122.55X100 1X35.45=35.45 3X16=48 =39.2% Molar mass= 122.55g Find the percentage of water in MgCl2 X 6H20 1X24.31=24.31 108.12/203.33X100 2X35.45=7...

Avogadro's Number in honor of Amadeo Avogadro () The mole (mol) The unit for counting atoms. The mole is a unit for counting just as a dozen or a ream or a gross is used to count. Atomic mass for an element The average relative mass of all the isotopes for the element. 1 mole atoms = 1 mole molecules = The atomic mass of an element in grams contains (2) The atomic mass of an element in grams contains... (1) Avogadro's number of atoms (2) and is def...

TEAS 7 Test Science, Exam Questions & AnswersThe equation above is unbalanced. Which of the following shows the molar products of the neutralization reaction after balancing? A. 2MgCl2 + H2O B. 2MgCl2 + 2H2O C. MgCl2 + H2O D. MgCl2 + 2H2O - D. MgCl2 + H2O H+ + HCO3- <-> H2O + CO2 Based on the equation above occurring in blood, which of the following would result if the reaction is moving in a forward direction? A. Blood pressure will decrease B. The blood will become more acidic C. ...

What are the clinical considerations for maxillary molars? correct answers Instrumentation challenge: Furcations Root concavities Cervical ridge Role in occlusion Deposit formation Which dimension is greater on the maxillary molars? correct answers Mesiodistal On the maxillary molars the crown taper is shorter from __________ to __________ correct answers Mesial; Distal On the maxillary molars, crown tapers mesial to distal on both and buccal to lingual except on which mol...