For a molecular species, its molar mass in g/mole would be the same number as its molecular mass in amu when:   A. the temperature is increased by 100 oC   B. there are an Avogadro’s number of molecules   C. there are two dozen molecules   D. the molecular species is dissolved in a solvent to form a solution   E. the temperature is 0 K

The concentration of sodium sulfate solution is 19.1% by mass. There are ______ g of sodium sulfate present in a 277.9g sample of this solution. A. 6.87×10−4 B. 1450 C. 5310 D. 53.1 E. 6.87

16. How many moles are in 2.50 L of a 0.500 M solution of KOH? 0.00125 moles KOH 0.200 moles KOH 1.25 moles KOH a. с. b. d. 3.00 moles KOH

How many grams of NaCl (molar mass of NaCl 58.4 g/mol ) are required to make 1.0 L of a 0.1 M Solution?  A. 58.4 g b. 5.84 g c. 584 g d. 23g

10A Complete the figure below. Br NaCN DMSO B A NH₂ C 1. Br₂, NaOH 2. H₂O/H* TT. H₂SO4

Determine the volume of 10. mol/L H,SO4 solution that is needed to make 1.0 L of 1.0 mol/L solution of H2SO4. A) 1 L O B) 0.01 L C) 0.10 L D) 10 mL

I need answers with solutions , how you got that answerS

What is the final molarity when 89mL of a 3.75M solution is diluted to 332mL? O A. 0.57M о В. 1.75M О С. 8.03М O D. 1.01M

uestion 20 A 0.465 g sample of an unknow atm. What is the molar mas O 33.9 g/mol O 81.8 g/m 21

C Determine the moles of sodium carbonate that need to be taken from the concentrated solution. (To avoid introducing rounding errors on intermediate calculations, enter your answer to four significant figures.) Moles from the concentrated solution = Show/Hide Help Submit mol Concentrated solution conc. Diluted solution conc. Diluted solution volume Diluted solution moles 2.45 M 0.250 M 100.0 mL 0.02500 mol