Questions tagged 'Chemistry'
452 questions
Feb 01, 2025
Which of the following would not have the same number of valence electrons as the others?
Which of the following options has a different number of valence electrons compared to the others? Please note that option (b) is the correct answer.
IR spectrums of formic acid and 1-propanol. What is the difference between the two?
I have two bottles of colorless liquids that have been sitting in the back of the storeroom for quite some time. Unfortunately, the labels have fallen off due to their age. However, I know that one bo...
Jan 31, 2025
Calculate the rms speed of an oxygen gas molecule, o2, at 29.0 ∘c . express your answer numerically in meters per second.
Calculate the root mean square (rms) speed of an oxygen gas molecule (O₂) at a temperature of 29.0 °C. Please express your answer numerically in meters per second.
Crbr2(aq)+agno3(aq)→ express your answer as a chemical equation. enter noreaction if no reaction occurs. identify all of the phases
Given the reaction between chromium(II) bromide (CrBr2) in aqueous solution and silver nitrate (AgNO3) in aqueous solution, please express your answer as a balanced chemical equation. If no reaction o...
Calculate the concentration of so42− ions in a 0.010 m aqueous solution of sulfuric acid. express your answer to four decimal places
Calculate the concentration of sulfate ions (SO₄²⁻) in a 0.010 m aqueous solution of sulfuric acid. Please express your answer to four decimal places and include the appropriate units.
Jan 30, 2025
Help with chemistry question?
Can you help me with the following chemistry questions? The radius of a gold (Au) atom is approximately 1.35 angstroms. a) Please express this distance in both nanometers and picometers. b) How many...
Jan 29, 2025
Need help in chemistry: how to convert kg to mg?
I need assistance with a chemistry problem: How do I convert kilograms to milligrams? For instance, I would like to know how to convert 0.00576 kg into its equivalent measurement in mg. Could you plea...
silver chromate is sparingly soluble in aqueous solutions. The ksp of silver chromate is 1.12×10^-12?
What is the solubility of silver chromate (Ag2CrO4) in mol/L under the following conditions: a) in 1.3 M potassium chromate (K2CrO4), b) in 1.3 M silver nitrate (AgNO3), and c) in pure water? Thank yo...
Determine the volume of O2 (at STP) formed when 50.0 g of KClO3 decomposes according to the following reaction
Determine the volume of O2 (at STP) produced when 50.0 g of KClO3 decomposes according to the following reaction: 2 KClO3(s) → 2 KCl(s) + 3 O2(g) Given that the molar mass of KClO3 is 122.55 g/mol, h...
Number of Unpaired Electrons in Groups?
How many unpaired electrons are present in the ground state of an atom from each of the following groups? Please enter the numbers in order, from (a) to (d), in the answer boxes provided. All four num...