Mols - Study guides, Class notes & Summaries

Acid - CORRECT ANSWER-proton donor base - CORRECT ANSWER-proton acceptor conjugate base - CORRECT ANSWER-what is left after an acid gives up a proton Strong acids - CORRECT ANSWER-HCl, HBr, H2SO4, HI, HNO3, HClO4 strong base - CORRECT ANSWER-group 1 hydroxide (NaOH, KOH, Ca(OH)2) strong acids have - CORRECT ANSWER-weaker conjugate base weaker acids have - CORRECT ANSWER-stronger conjugate bases weaker bases - CORRECT ANSWER-resonance, more electronegative groups buffer - CORRECT ANSWER-...

Accuracy correct answers Measurement of how close a result comes to the true value. Sometimes involves calibration with. A known standard Precision correct answers Measure of the agreement between 2 or more measurements that are averaged to give reported value. Dependent variable correct answers Quantity that changes in response to changes of independent variable Independent Variable correct answers The quantity under control that determines the value of other variables. Changed to obse...

Edexcel A Level Chemistry (Paper 3) Exam. Updated And Verified Questions With Accurate Answers. What can heat help a solid do? - answerdissolve why should the volumetric flask be shaken when making a standard solution? - answerto ensure a uniform concentration why is a volumetric pipette more accurate than a measuring cylinder? - answersmaller uncertainty if the burette isn't rinsed with the substance that will be put in it, residual water might have what effect? - answerdilute the con...

Purdue Chem 115 Exam 1 Questions and Answers 100% Pass What does the X represent Atomic Symbol What does the A represent Mass Number What does the Z represent Atomic number law of concervation of mass the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes horizontal on periodic table periods vertical on periodic table groups What are Ionic compounds made of metal and nonmetal What are covalent compounds made of nonmetal and nonmetal Describ...

Chem 101 Final Exam Questions With Correct Answers Determine the formula weight of KBr - ANSWER- 119.00 amu Determine the mass in grams of 3.00 x 10^21 atoms of arsenic. (The mass of one mole of arsenic is 74.92 g.) - ANSWER- 0.373 g Fill in the blank: A mole is defined as the number of carbon atoms in _____ g of pure ^12C. - ANSWER- 12 How many atoms are in 1.2 mol of carbon? - ANSWER- 7.2264 x 10^23 Which one of the following contains the most moles of oxygen atoms? A) 1 mol ...

Solve these ideal gas law problems. Show all work for credit. 1. A gas occupies 250 mL at 739 mmHg. For a gas at constant temperature, determine the volume of gas at 514 mmHg. (1.5 points) 2. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1.5 points) 3. A sample of nitrogen (N2) has a volume of 50.0 L at a pressure of 2 ATM. What is the volume of gas at a pressure of 15 atm, if there is no change in temperature? (1.5 points) 4. A 0.6 L...

▪ In the periodic table, element X is in group 2 and element Y is in group 5. what is the likely formula of the ionic compound of X and Y - Ans .X3Y2 ▪ which enthalpy changes are endothermic - Ans .the bond enthalpy of a C-H bond and the second electron affinity of oxygen ▪ explain why the halogens show an increased boiling point down the group (3) - Ans .- london forces increase - number of electrons increase - more energy to break intermolecular forces ▪ predict what would h...

Deze samenvatting bevat alle onderwerpen behandeld tijdens het master vak BMS75 - Advanced tools in molecular biology (designing molecular probes, subcloning, primer design, cell transfection methods, CRISPR/Cas technologies, functional protein analysis, epitope tags, affinity tags, cell seleciton, fluorescent protein vectors, single fluorescent protein-based probes, BiFC-based probes and FRET-based probes). This summary contains all subjects covered during the master course BMS75 - Advanced...

What is the equation for corrected phenytoin? Correct Answer CP= measured serum phenytoin/(0.2*albumin)+0.1 What is the principle intracellular cation? Correct Answer potassium Principle extracellular is Sodium How many ml in a teaspoon? Correct Answer 5 ml How many ml in a tablespoon Correct Answer 15 ml How many ml in a cup? Correct Answer 240 ml How many ml in an ounce? Correct Answer 29.6 ml How many ml in a pint? Correct Answer 473 ml How many ml in a gallon? Correct...

Ocr a level chemistry paper 1 2023 QUESTIONS AND ANSWERS// OCR A- Level Chemistry Paper 1 2022 LATEST UPDATE Define Transition element - CORRECT ANSW-A d-block element that can form at least one stable ion with an incomplete d subshell Why aren't scandium and Zinc transition elements? - CORRECT ANSW-Cannot form stable ions with an incomplete d-sub shell. Sc 3+ has an empty d-sub shell and Zn 2+ has a full d sub shell. Name the oxidation states and coloured io...