Consider the reaction, 2H2(g) + O2(g) → 2H2O(g) AH = -484 kJ. If 850 kJ of energy is released in the reaction at constant pressure, how many grams of water are formed during the process? Choose 1 answer 21 g 10 g 5.1 g 1.1 g 0.57 g Help me with this one,

Q: You make 250 mL of a 75 mM CHES buffer (pKa=9.3) and adjust the pH to 9.0. Determine what volume (in…

A: To determine the volume of 0.85 M NaOH required to exceed the buffer capacity, we need to first…

Q: Draw a possible alkane reactant that would yield the following products under these conditions.…

A:

Q: Both SO2 and CO2 have the same number of atoms, but one is polar and one is non polar. Draw the…

A: SO2's molecular geometry is bent or V-shaped, with a bond angle of about 119 degrees.  One lone pair…

Q: Give the structure that corresponds to the following molecular formula and ¹ H NMR spectrum: C-H₁0:8…

A: Given molecular formula of the compound is C5H10  1H NMR spectrum gives a peak at δ = 1.5  singlet

Q: A 23.9 g sample of nitrogen monoxide is injected into a 3.17–L reaction vessel that contains 28.2 g…

A: Given A 23.9 g sample of nitrogen monoxide is injected into a 3.17–L reaction vessel that contains…

Q: Answer the following problems: There are 15 g of CUNO3 dissolved in 250 mL of water. What is the %…

A:

Q: 2. Draw a simple particle diagram of a saturated solution of bismuth (III) iodide:

A: Bismuth (III) Iodide is a sparingly salt, for that its concentration must be low, due to its low…

Q: What is the pH of a 1.25M solution of nitrous acid if the Ka is 7.2 ×10^-4?

A:

Q: A: 4.91 g of LiCl was dissolved in 50.0 mL of water in the same calorimeter as in problem 1.…

A:

Q: 11:20 1 4 7 +/- Question 5 of 22 What is the pH of a 6.5 x 10-6 M KOH solution? 2 5 8 3 6 9 O Submit…

A:

Q: How does the study of organic chemistry contribute to advances in medicine, materials science, and…

A: The study of organic chemistry plays a critical role in advancing various fields, including…

Q: 2C1O₂(aq) + 2OH(aq) [CIO₂] (M) 0.0500 0.100 0.100 a. CIO3(aq) + CIO₂ (aq) + H₂O(1) [OH-] (M) 0.100…

A:

Q: H4C2O2 is found to have 396 mol of O atoms. How many H4C2O2 molecules are present?

A:

Q: What error would be introduced into the determination of the density of a solid object, if air…

A: Density is defined as the mass per unit volume.

Q: Students are completing the "Different types of bonding investigation" practical whereby they must…

A: Solution: Here mobility of electrolytes ions can be used to measure the conductance of each…

Q: Calculate the pH of a 0.021 M CN - (aq) solution. [Ka(HCN) = 4.9 × 10-10]

A: Answer :

Q: 2. Calculate the enthalpy change of the reaction that produces carbon monoxide by treating CO2 (g)…

A:

Q: Calculate the pH of 6.3x10^-10 M NaOH and 4.7 M NaOH

A:

Q: proposed multiplication or division (5.0 cm²) (9.0 cm) = ? 2 60. mg 0.020 g = ? Is this possible? O…

A: given three multiplication and division , we have to tell whether it is possible to carry out…

Q: For a particular reaction, AH = 73.5 kJ and AS = 193.7 J/K. Assuming these values change very little…

A:

Q: Ethane (C2H6) is a colorless, odorless gas that is highly flammable.  The UNBALANCED chemical…

A:

Q: Use Hess's law to calculate enthalpy change. Given the following two reactions: (1) Fe(s) + Cl₂(g)…

A: The given reaction is as follows:    Fe(s) + Cl2(g) → FeCl2(s)                    ∆H1=-341.8 kJ…

Q: Starting with heptanoyl chloride, write a series of steps to make each of the following: 1. ethanoic…

A: The question is based on organic synthesis. we need to synthesize the product based on common…

Q: An empty steel container is filled with 0.320 atm of A and 0.320 atm of B. The system is allowed to…

A: Consider the given information as follows; A (g)   +   B (g)    ⇌     C (g) Partial pressure of A =…

Q: The Ca²+ ion in hard water can be precipitated as CaCOs by adding soda ash, Na₂CO3. If the calcium…

A: • First, let's write the dissolution of calcium carbonate as follows CaCO3(s) ---------> Ca2+(aq)…

Q: Draw the products and necessary reagents of the three step retrosynthetic reaction sequence shown…

A: Answer :  The products and  necessary reagents of the three step retrosynthetic reaction sequence…

Q: Which reactants can be used to form the product 4-cyclopropyl-3-ethylhex-5-en-3-ol?

A: The question is based on organic synthesis.   we need to synthesize the product based on Organic…

Q: Pt(s) | V³+ (aq, 0.210 M), V²+ (aq, 0.00600 M) || S.H.E. Ecell = V E√³+√√2+ = -0.255 V The Pt…

A:

Q: 6. Balance the following chemical equations and determine the type of reaction: Na (s) + NaOH (aq) +…

A: Different type of chemical reaction: a) Precipitation reaction: In precipitation reaction an…

Q: Deduce Bohr's postulate L = nh, h is h-bar

A: Bohr’s Atomic model was based on the quantum theory of radiation and classical law of physics.

Q: Suppose a 250. mL flask is filled with 0.20 mol of NO₂, 0.50 mol of NO and 0.40 mol of CO₂. The…

A: Since,Equilibrium constant or Kc is the ratio of the equilibrium concentrations of product over…

Q: CIOH140 Problem 12 3 ppm, 8 1 6

A: The question is based on the concept of organic spectroscopy. we need to analyse,  interpret the…

Q: 2. Write a structure for B-glucose (shown below) where all of the -OH and the --CH₂OH are equatorial…

A: To draw the structure of β-glucose in chair confirmation.with all the CH2OH and OH groups…

Q: A diatomic molecule, MX, has a bond length 130 pm and has a dipole moment of 3.5 D. What is the…

A: This question belongs to chemical Bonding.

Q: Calculate the pH 6.3x10^-10 M NaOH

A:

Q: Provide the missing reagent(s) or product(s), as needed, in the following Robinson Annulation…

A:

Q: For the reaction CCl₄(g) ⇌ C(s) + 2Cl₂(g) Kp = 0.76 at 700 °C. What initial pressure of pure carbon…

A: Given, CCl₄(g) ⇌ C(s) + 2Cl₂(g) Equilibrium constant (Kp) = 0.76  Total equilibrium pressure…

Q: Consider a voltaic cell in which the following reaction takes place in basic medium at 25°C 2 NO3-…

A: The given reaction represents a spontaneous reduction half-reaction: 2NO3- (aq) + 4 H2O (l) + 3 e-→…

Q: When comparing the structures of aspirin and acetaminophen, why can acetaminophen exist in a liquid…

A: Use of aspirin

Q: Grams of solute/100g H₂O 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 KI Na2SO47 0 10…

A: 'Since you have asked question with multiple subparts, we will solve the first-three subpart for…

Q: COM HOOL 74 MAI INIH MIZMA P FIL. IN 24

A: Alkene convert into epoxide then hydrolysis to give diol

Q: Provide the organic products of the following and also show the mechanism involved in (a)? (b) *****…

A:

Q: CH3CH2CH3

A:

Q: Which of the highlighted chemical bonds in the molecules below is longest? Shortest? In between?…

A:

Q: Predict the products of the following reactions and state whether they will occur via S1 or SN2…

A:

Q: Write the basic equilibrium equation for HS. Be sure to include the proper phases for all species…

A: Weak bases are those bases which are partially ionized in aqueous solution. According to Bronsted…

Q: Which has the largest radius? N3-, K+, Cl-, P3-, S

A: The atomic radius is defined as the distance between the nucleus of an atom and its outermost…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Answer: When two atom have same atomic number but different mass number then they are called as…

Q: Consider a particle in state n = 4 moving in a 1D box of length I = 1.0 angstrom (Å). What is the…

A:

Q: 4. Predict and show the overall molecular geometry/shape and the molecular geometry/shape of the…

A: