Questions tagged 'Chemistry'
452 questions
Nov 24, 2024
Are Be(OH)2 and CF3Cl polar or non-polar? What is the reason?
Are beryllium hydroxide (Be(OH)2) and trifluoromethane (CF3Cl) polar or non-polar? What are the reasons for their classifications?
Amixture in which the substances it contains remain distinct
A mixture in which the substances it contains remain distinct is known as a heterogeneous mixture. Can you provide examples of such mixtures and explain their properties and applications?
What is the net ionic equation for the following reaction?
What is the net ionic equation for the following chemical reaction? Please provide detailed answers and explanations to enhance understanding.
Calculate the ph of a buffer that is 0.020 m hf and 0.040 m naf. the ka for hf is 3.5 × 10-4.
Calculate the pH of a buffer solution that contains 0.020 M HF and 0.040 M NaF. The dissociation constant (Ka) for HF is 3.5 × 10⁻⁴.
For a particular isomer of C8H18, the combustion reaction produces 5113.3 kJ of heat per mole of C8H18(g) consumed, under standard
For a specific isomer of C8H18, the combustion reaction releases 5113.3 kJ of heat per mole of C8H18(g) consumed under standard conditions. The reaction can be represented as follows: C8H18(g) + 25/2...
How many atoms are there in 26.1 g of potassium bromite (KBrO2)?
How many atoms are present in 26.1 grams of potassium bromite (KBrO2)? Additionally, could you explain the steps involved in calculating the total number of atoms in this compound?
Nov 22, 2024
How many moles of NaF are in 34.2 grams of a 45.5% by mass NaF solution?
I find calculating moles challenging, especially when it comes to understanding percentages. I have several similar problems to solve, and I would appreciate a step-by-step breakdown of how to determi...
Nov 21, 2024
1)Calculate [OH^-] for 1.8×10^−3 M Sr(OH)2.?
1) Calculate the concentration of hydroxide ions, [OH⁻], for a 1.8 × 10⁻³ M solution of Sr(OH)₂. 2) Calculate the pH for a 1.8 × 10⁻³ M solution of Sr(OH)₂. 3) Calculate the concentration of hydroxide...
Nov 21, 2024
A6.55 g sample of aniline (c6h5nh2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 14.25 kj/°c.
A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 14.25 kJ/°C. If the initial temperature of the calorimeter was 32.9°C, please...
Chem Help please!!!!!!!?
How many pounds of calcium oxide (CaO) must be added to water to achieve a pH of 3.83? NEEDED INFO: Below are some potentially useful conversion factors: 1 lb = 453.6 g 1 gallon = 4 quarts 1 quart =...