The van der Waals equation of state n'a P+ (A) 10 cm³.mol'. (C) 1 cm³.mol'. contains a term representing a “molecular size”. The (V - nb) = nRT approximate magnitude of this term is (B) 10°³ cm³.mol'. (D) 10³ cm³.mol‍'.

I don’t understand these two questions.(66 and 67)

1.    In your pharmacy you have a balance with a sensitive requirement of 7mg; 10,25,50 and 100ml graduated cylinder; and 1 oz apothecary and 4-ounce apothecary conical cylinder. What is the minimum measurable volume in ml using the graduated cylinder?a.    5b.    20c.    1d.    2

QI/A- Fill in the blanks 1- 2- is the collection of all of the components in the sample containing an analyte. indicates the amount of cach substance in a sample. ......-... is the process of determining the proportionality between analyte concentration 3- ...... and a measurcd quantity. 4- is the ratio of its mass to the mass of an cqual volume of water at 4C. ....... 5- A compound produced by an internal acid /base reaction consisting of positive and negative charge is.... B-Write the appropriate equation for each of the following 1- The Henderson-I lasselbalch cquation for acid and its salt. 2- (HO'] for acidic salt. 3- The relationship between molarity and part per millian. 4- ion-product constant for water. 5- weight/volume percent (w/v), and its units. ......... O 100 1

Substance Density Volume in Weight in In g/mL mL Number Melting pt in °C Mol. Wt. of moles Magnesium Bromobenzene Methyl benzoate Triphenylmethanol (expected) | (expected) Dronnduro

Inbc X (531 X Con X I Bala X Ans X Inbc X CHE X 101 Che X С Ч-С х b My x Unk X Sea X E I ma X app.101edu.co/# Bryant's Gmail Cascadia Canvas Lo... T GSBA Scholarship L... HOMEGROWN TRA... Learn Touch Typing... C The Science of Well... Investor360° ® Login ClickUp Reading list >> Question 7 of 40 Submit Which of the following compounds can form intermolecular hydrogen bonds? A) CH4 B) H2Se C) NH3 D) H2 E) All of these compounds can form hydrogen bonds. 10:36 AM e Type here to search 64°F 小 8/26/2021 (8)

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.General formula of paraffin is - 39 A - CnHn+2. O B - CnH2n+2. O C - CnH2n. O The unit measuring pour point - 40 :is A-g. O B °C. O O C - mm.

ab 1.2b – Worksheet hoduloz nl sl Name: anlov ient) noitulce to J1 ni bavloaie Lab Period: tw nottuleen Concentrations and Dilutions Review ean no Reading: Silverthorn 7e Fig. 2.7 p. 42 Student Learning Objectives: Explain the different ways concentration is expressed Define all terms used Explain the concept of a mole and Avogadro's number for ionizing and non-ionizing solutes Calculate molarity, grams, molecular weight, and volumes in problems Make the calculations necessary to perform serial dilutions. Use the concept of a mole to calculate the number of moles or grams to be used in chemical reactions. Physiologists spend a lot of time working with chemical solutions needed for various lab techniques. You therefore need to know how to make up solutions of known concentrations and to make appropriate dilutions of these solutions. Concentration: the amount of solute present per unit of solvent. stom Solute: the minor component of a solution; the substance dissolved in another…