Questions tagged 'Chemistry'
452 questions
Ammonia, NH3(g), and hydrogen chloride, HCl(g), react to form solid ammonium chloride, NH4Cl (s)….?
Two 2.00 L flasks at 25°C are connected by a stopcock. One flask contains 5.00 g of NH3(g), and the other contains 5.00 g of HCl(g). When the stopcock is opened, the gases react until one of them is c...
How do I do this chemistry problem?
How can I calculate the number of moles of (CH3)3NH+ present in 6.0 g of (CH3)3NH+?
A10.0-ml sample of 0.200 m hydrocyanic acid (hcn) is titrated with 0.0998 m naoh. what is the ph at the equivalence point?
A 10.0 mL sample of 0.200 M hydrocyanic acid (HCN) is titrated with 0.0998 M NaOH. What is the pH at the equivalence point? For hydrocyanic acid, the pKa is 9.31.
Calculate molarity of NaOH solution?
I would like to calculate the molarity of a sodium hydroxide (NaOH) solution using the following information: I have a mass of potassium hydrogen phthalate (KHP) of 1.011 grams and a volume of NaOH so...
Oct 19, 2024
How do chemolithotrophs acquire energy?
How do chemolithotrophs acquire energy? Additionally, what role do changes in climate and historical records play in their energy acquisition processes?
Oct 19, 2024
Consider the neutralization reaction below: 2HNO3 + Ba(OH)2 -> 2H2O + Ba(NO3)2.?
Consider the neutralization reaction below: 2 HNO3 + Ba(OH)2 → 2 H2O + Ba(NO3)2. A 0.115-L sample of an unknown HNO3 solution required 48.7 mL of 0.100 M Ba(OH)2 for complete neutralization. What is...
Help on chemistry problems for final. Thanks.?
Titanium (III) chloride, a substance used in catalysts for preparing polyethylene, is produced by the high-temperature reaction of TiCl4 vapor with H2: 2TiCl4(g) + H2(g) → 2TiCl3(s) + 2HCl(g) Part...
How many moles of Na2CO3 can be produced?
How many moles of Na2CO3 can be produced from the reaction between sodium hydroxide (NaOH) and carbon dioxide (CO2)? The balanced chemical equation for the reaction is: 2NaOH + CO2 → Na2CO3 + H2O Give...
Oct 18, 2024
A room with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘C and 1.00 atm. The molar mass of oxygen is 32.0 g/mol.?
A room with dimensions 7.00 m × 8.00 m × 2.50 m is to be filled with pure oxygen at a temperature of 22.0 °C and a pressure of 1.00 atm. Given that the molar mass of oxygen is 32.0 g/mol, how many mol...
Electron affinity reaction with fluorine?
The electron affinity of an element refers to the energy change that occurs when an electron is added to a neutral atom in the gas phase, typically expressed as a negative value. Could you please prov...