Chemistry

What is the molar mass of nitrogen gas? A) 14.0 g/mol B) 28.0 g/mol C) 6.02 1023 g/mol D) ...

Started by luminitza

What is the mass of a single fluorine molecule, F2? A) 3.155 10-23 g B) 6.310 10-23 g C) ...

Started by vinney12

What is the mass of 0.500 mol of dichlorodifluoromethane, CCl2F2? A) 4.14 10-3 g B) 60.5 g C) ...

Started by imanialler

The volume of 350. mL of gas at 25C is decreased to 135 mL at constant pressure. What is the final ...

Started by PhilipSeeMore

How many moles are there in 3.00 g of ethanol, CH3CH2OH? A) 0.00725 mol B) 0.0652 mol C) 15.3 ...

Started by karen

Consider a bond A-B. If the difference in electronegativity is 3.5, the bond is considered ________. ...

Started by audragclark

What mass of carbon dioxide, CO2, contains the same number of molecules as 3.00 g of ...

Started by drink

Which glassware is best to measure 10.5 mL of a liquid? A) a graduated buret (with marking every ...

Started by tnt_battle

What mass of phosphorus pentafluoride, PF5, has the same number of fluorine atoms as 25.0 g of ...

Started by nautica902

A gas bottle contains 0.250 mol of gas at 730 mm Hg pressure. If the final pressure is 1.15 atm, how ...

Started by MirandaLo

Which element has the ground-state electron configuration Xe6s2 4 f 7? A) Re B) Ir C) Eu D) ...

Started by Jipu 123

What is the chemical formula of rhenium(VII) oxide? A) ReO7 B) ReO4 C) Re2O7 D) ...

Started by Destiiny22

What is the chemical name given to the compound whose formula is N2O4? A) nitrogen quadraoxide ...

Started by melina_rosy

What is the chemical formula of a compound named ammonium sulfide? A) NH4S B) (NH4)2S C) ...

Started by urbanoutfitters

The molecular weight of nitrous oxide (N2O), known as laughing gas, is ________ amu (rounded to one ...

Started by frankwu

What is the chemical formula of the compound named potassium bicarbonate? A) KHCO3 B) K2(HCO3) ...

Started by ARLKQ

A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. How much calcium ...

Started by s.tung

A fixed amount of gas at 25.0C occupies a volume of 10.0 L when the pressure is 629 torr. Use ...

Started by Alygatorr01285

Which atom in each group (I and II) has the smallest atomic radius? (I) Ba, Hf, At (II) As, Sb, Bi ...

Started by chads108

Determine the mass percent (to the hundredths place) of H in sodium bicarbonate (NaHCO3). What ...

Started by khang

What is the chemical symbol for copper? A) C B) Ca C) Cl D) Cr E) ...

Started by pane00

Amines are classified by A) the number of alkyl groups attached to the nitrogen. B) the number ...

Started by jasdeep_brar

Which of the following is not a binary ionic compound? A) lithium sulfide B) potassium iodide ...

Started by penza

How many cations are there in 10.0 g of sodium phosphate? A) 3.67 1022 cations B) 1.10 1023 ...

Started by Pineappleeh

Xylene, a compound with the formula C8H10, is composed of A) any combination of atoms of carbon ...

Started by student77