Question
Asked Oct 15, 2019
977 views

Hello, this is one of the problems that I cannot figure out on my homework. Thank you for your help. 

Suppose 1.85g of copper(II) nitrate is dissolved in 100.mL of a 60.0mM aqueous solution of sodium chromate.

Calculate the final molarity of copper(II) cation in the solution. You can assume the volume of the solution doesn't change when the copper(II) nitrate is dissolved in it.

Be sure your answer has the correct number of significant digits.

check_circle

Expert Answer

Step 1

The number of moles of sodium chromate (nsc) is calculated using equation (1) in which C is the concentration of sodium chromate and V is the volume of solution.

help_outline

Image Transcriptionclose

п, ..... 1) C ="sc V n 60.0 mM 100 mL п. SC 60.0x 103 M 100x 10 L 6.00x 103 mol n SC

fullscreen
Step 2

The number of moles of copper nitrate (ncn) is calculated using equation (2) in which m is the mass of solute and Mm is the molar mass of solute.

help_outline

Image Transcriptionclose

т .. (2) п. en М, 1.85 g п. 187.56 g/mol cn 3 mol =9.86x 10

fullscreen
Step 3

The reaction between copper nitrate and...

help_outline

Image Transcriptionclose

Cu(NO,), (aq)+Na,CrO, (aq) CuCrO, (s)+2NaNO, (aq)

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

General Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: HSS Website X urse Home 5158&HEPID=6b9f9 b2f... 2 010 8 of 21 Review I Constants I Periodic Table ac...

A: A chemical reaction is symbolic representation of the conversion of substances to new substances.

question_answer

Q: choose the correct option  a) 2R,3R  b) 2S,3S  c) 2R,3S d) 2S,3R

A: Rules for R and S configuration:Higher atomic number atom gets high priority.Priority order for oxyg...

question_answer

Q: How many moles of chloride ions are present in a 460.0 mL solution of CaCl2 that has a concentration...

A: The number of moles for a given chemical species refers to the ratio of mass to the molar mass. The ...

question_answer

Q: What mass of lithium phosphate is needed to prepare 500. mL of a solution having a lithium ion conce...

A: The moles of Lithium phosphate is calculated as follows,

question_answer

Q: 7. Write the correct Lewis structures for the following compounds (relative positions of atoms are s...

A: The Lewis structure of the compound H C N.

question_answer

Q: Robert Millikan determined that the charge of an electron is –1.60 × 10–19 C by analyzing the charge...

A: Mulikan found that all oil drops used in the experiment are multiples of 1.6x10-19 C.

question_answer

Q: What is the balanced molecular reation, total ionic reaction and net reatction of Cu+H2SO4(aq)----&g...

A: In a chemical reaction; the substance which involves in conversion is said to be reactant whereas th...

question_answer

Q: Suppose you create a standard with an initial concentration of 60.0 percent alcohol by volume. You t...

A: A standard with an initial concentration of 60.0 percent alcohol by volume is created. Then 5.00 mL ...

question_answer

Q: How many liters of Cl2(g) at STP can be made from NaCl by oxidation with 24.0 grams of K2Cr2O7 in an...

A: Given,Grams of K2Cr2O7 = 24.0 gMoles of K2Cr2O7 can be calculated as: