04/11/23

How many grams are in 2.85×10 to the 23rd formula units of aluminum fluoride.
How many grams are in 2.85×10 to the 23rd formula units of aluminum fluoride.
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02/10/23

Water (2410 g) is heated until it just begins to boil. If the water absorbs 5.01×105J of heat in the process, what was the initial temperature of the water?
Express your answer numerically in degrees Celsius.
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04/29/22

HELP WITH CHARLES LAW PLS
A 15.0L balloon at room temperature (293.15k) is placed in a oven what is the temperature of the oven if the ballons new volume is 30.0L
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04/20/22

Help me please someone

Consider a 2.87 g sample of C4H10C4H10. How many molecules are in this sample? Report your answer with 3 significant figures and in scientific notation. Use * for the multiplication symbol.
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04/20/22

Can some one please help answer this
How many moles of Zinc sulfate, ZnSO4, are present in 47.3 g of Zinc sulfate?___________moles
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04/08/22

Cahn-Ingold Prelog Rules
Hi! In prioritizing the atoms in a chirality center, would C be prioritized first or CH3?
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04/08/22

Reaction Rates, Factors Affecting Reaction Rates, and Collision Theory
Use the equation to answer the questions. C6H12O6 (s) + 6 O2(g) → 6 H2O (g) + 6 CO2 (g) 1. What happens to the concentrations of: a. C6H12O6 and O2 as the reaction proceeds →? b. H2O + CO2 as the... more
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04/08/22

Reaction Rates, Factors Affecting Reaction Rates, and Collision Theory
Use the equation to answer the questions. C6H12O6 (s) + 6 O2(g) → 6 H2O (g) + 6 CO2 (g) 1. What happens to the concentrations of: a. C6H12O6 and O2 as the reaction proceeds →? b. H2O + CO2 as the... more
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04/05/22

Chemistry question pls help
A 0.623 g sample of a metal, M, reacts completely with sulfuric acid according to M(s)+H2SO4(aq)⟶MSO4(aq)+H2(g) A volume of 283 mL of hydrogen is collected over water; the water level in the... more
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04/01/22

If a buffer solution is 0.200 M in a weak acid ( 𝐾a=2.2×10−5) and 0.440 M in its conjugate base, what is the pH?
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03/31/22

Identify the electrophilic centers in the following molecules:
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03/21/22

How many milliliters are there in a solution containing 65.6g of KOH if the solution is 1.80M
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03/20/22

4 NH3 (g) + 5 O2 (g) → → 4 NO (g) + 6 H2O (l) How many moles of NH3 is required to produce 25.9 grams of NO?

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03/17/22

Molarity/molality help #8
How many kilograms of H2O must be added to 75.9 g of Ca(NO3)2 to form a 0.513 m solution?__ kg
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03/11/22

Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide.
Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide.4HCl(aq)+MnO2(s)⟶MnCl2(aq)+2H2O(l)+Cl2(g)A sample of 42.1 g MnO2 is added to a solution... more
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03/04/22

A balloon containing methane gas has a volume of 4.17 L at 77.0 °C . What volume will the balloon occupy at 154 °C ?
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03/02/22

Chem 101 Homework 8:Kinetics Question 8
What is the rate for the zero order reaction A → Products when [A] = 0.200 M? (k = 4.05 M/min)Answer= _______M/min
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03/02/22

Chem 101 Homework 8: Kinetics Question 11

A reaction has a rate law of Rate = (1.25 M⁻¹s⁻¹)[A][B]. What is the rate of the reaction if [A] = 0.503 M and [B] = 0.280 M?Answer = ____M/s
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03/01/22

50g of calcium chloride is dissolved into 250ml of water. Calculate the molanity of the calcium ion?
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02/28/22

Equilibrium Constant
A one-mole sample of NOBr was placed in a 10 L container at 25 °C, and the following reaction was allowed to come to equilibrium. 2 NOBr(g) ⇌ 2 NO(g) + Br₂(g) The equilibrium concentrations were... more
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02/27/22

Using 2H2+ Oz--> 2H20. Determine the limiting reactant when 19g of hydrogen reacts with 19g of oxygen
Well I don’t understand what this means or what the answer is.. I just need to figure everything out before tomorrow
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02/27/22

Please help! 2H2+ Oz--> 2H20 How many moles of oxygen are needed to react with 13 moles of hydrogen?
I just don’t understand these topics and I need more background information so I can figure everything out..
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02/25/22

A mixture of 196.1 g of P and 202.6 g of O2 reacts completely to form P4O6 and P4O10- Find the masses of P4O6 and P4O10 that are formed by the reaction.
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02/25/22

Assuming an efficiency of 33.50%, calculate the actual yield of magnesium nitrate formed from 135.5 g of magnesium and excess copper(I) nitrate. Mg + Cu(NOz)2 • Mg(NOg)2 + Cu
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02/25/22

A 17.77 g sample of a compound contains 5.67 g of potassium, K, 5.14 g of chlorine, Cl, and oxygen, O. Calculate the empirical formula.
A 17.77 g sample of a compound contains 5.67 g of potassium, K, 5.14 g of chlorine, Cl, and oxygen, O. Calculate the empirical formula.
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