303 Answered Questions for the topic General Chemistry

General Chemistry Science Chemistry Moles

06/11/21

Mass of CaCl2: 10,0 g Mass of Na2CO3: 10.0 g Actual amount collected: 2.00 g CaCO3 1. Write a balanced chemical equation.

A student performs a lab at school. They massed out both reactants and then mixed them together. The reaction produced a precipitate. They filtered out the product and took the mass of it. (I'm a... more
General Chemistry Science Chemistry Moles

06/10/21

H2SO4 + 2 NaOH = Na2SO4 + 2 H2O How many grams of Na2SO4 could be produced from 4.94 moles of sulfuric acid?

Grateful for any help given!
General Chemistry

04/29/21

determine the molar mass of an unknown nonvolatile solute of non electrolyte compound raising the boiling point of 150g of benzene by 0.500 degree Celsius

This topic is about Calculating Boiling point elevation
General Chemistry Science Chemistry

04/21/21

Balanced equations

1. Write the balanced equation for the reaction of copper (I) oxide and Vinegar.2. Write the balanced equation for the reaction of copper (II) oxide and Vinegar.

From the data below, calculate the total heat (in J) needed to convert 0.816 mol of gaseous ethanol at 300.0°C and 1 atm to liquid ethanol at 25.0°C and 1 atm:

b.p. at 78.d degrees Ccgas: 1.43 J/g. degrees CDelta Hvap: 40.5 kJ/molcliquid: 2.45 J/g. degrees C

Sulfur dioxide is produced in enormous amounts for sulfuric acid production. It melts at −73.0°C and boils at −10.0°C....

Its DeltaH fus is 8.619 kJ/mol, and its DeltaH vap is 25.73 kJ/mol. The specific heat capacities of the liquid and gas are 0.995 J/g.K and 0.622 J/g.K, respectively. How much heat is required to... more

04/01/21

What type of reaction is this?

Al(s) + 3Ag(NO3)2(aq) ===> Al(NO3)2(aq) + 3Ag(s)Double displacement?

03/23/21

From the partial (valence-level) orbital diagram, write the ground-state electron configuration and group number.

5p __ __ __ (no arrows)4d __ __ __ __ __ (four up arrows)5s __ (one up arrow)

03/22/21

Write the symbol of the element from which this ion is derived and Write the formula of the oxide this ion forms.

The partial (valence-level) orbital diagram for a 3+ ion is: (3+ ion) 4s 3d 

03/22/21

What is the full ground-state electron configuration of the monatomic ion most likely to be formed by Br?

I got 1s22s22p63s23p63d104s24p6 but it is incorrect.

03/22/21

Choose all possible values of each quantum number for the outermost electron in an S2− ion.

I got 3 for n and 1 for l but how do I find the possible values for ml and ms?

03/20/21

Write the charge and full ground-state electron configuration of the monatomic ion most likely to be formed by P.

Charge: -3And I got 1s22s22p63s23p3 for the ground-state electron configuration, but it is incorrect. What does ground state configuration mean?

03/20/21

Write the charge and full ground-state electron configuration of the monatomic ion most likely to be formed by P.

Charge: -3And I got 1s22s22p63s23p3 for the ground-state electron configuration, but it is incorrect. What does ground state configuration mean?

03/20/21

This chemical reaction is a two-step reaction. What type of reaction occurs in each step? How did you determine your answer?

The products of step 1 are sodium acetate and carbonic acid. Step 2, which occurs immediately after step 1, produces carbon dioxide and water.The balanced chemical equations are:NaHCO3(s)... more

03/13/21

Determine which of the following H atom electron transitions has the longest wavelength and which has the shortest wavelength:

(a) n = 1 to n = 6(b) n = 4 to n = 6(c) n = 4 to n = 9(d) n = 2 to n = 11Would the longest be b and the shortest be a?

03/10/21

For n = 3 and l = 2, give the sublevel designation, the allowable ml values, and the number of orbitals.

Sublevel designation:s, p, d, or f?Allowable ml values:0-1, 0, +1-2, -1, 0, +1, +2Or-3, -2, -1, 0, +1, +2, +3Number of orbitals:

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