Calculate the mass in amu

Assignment Help Chemistry
Reference no: EM13716919

Question - 1-Calculate the pH of a solution in which [H+] = 1.25 x 10-12 M. [1] Report your answer to 3 SF only!

2-Using the average atomic mass of lithium, calculate the mass, in amu, for a sample of 2.78 x 1025atoms of Li. [1] amu. Enter your answer using scientific notation.

3- Given the following balanced equation: 2 H2+ O2? 2H2O a) how many moles of water would form if 14.0 g of H2 reacted? moles b) how many grams of water would form if 14.0 g of O2 reacted? grams Comment

4-In a balanced chemical equation, the [1] indicate the molar relationships between any two reactants, any two products, or between any reactant and product

Thank you! My final is tomorrow and I am in desperate need!

Reference no: EM13716919

Questions Cloud

Find what is the speed of the mouse : A cat is running at 8.0 m/s and trying to catch a mouse, who has a tenth of the mass of the cat. What is the speed of the mouse
Find the work done by that force in moving an object : A force Fx = 4x+ 12 in N, with x in m acts on an object in one-dimensional motion. Find the work done by that force in moving an object
What mass of gold is produced through a gold solution : The item itself serves as the cathode, at which the Au3+ ions are reduced to Au(s). A piece of solid gold is used as the anode and is also connected to the power source, thus completing the circuit.
How high would this super flea be : A flea is able to jump straight up about 0.55 m. It has been said that if a flea were as big as a human, How high would this "super flea" be able to jump
Calculate the mass in amu : Using the average atomic mass of lithium, calculate the mass, in amu, for a sample of 2.78 x 1025atoms of Li. [1] amu. Enter your answer using scientific notation.
Find the magnitude of the magnetic field producing the force : A 4.8 m wire carries a current of 7.0A toward the +x direction. Find the magnitude of the magnetic field producing the force
Calculate what is the maximum height the ball reaches : You throw a 0.2 kg ball at a 47o angle with a speed of 35 m/s. find the maximum height the ball reaches
Define a lithium atom has the electron configuration : A lithium atom has the electron configuration: 1s2 2s0 3s0 3p1 (excited state). Would the "ground state" for the excited electron in the 3p orbital be in n=2 since the n=1 state is full?
Define what is the new total pressure : A mixture of gases contains 1.94 moles of O2, 2.87 moles of N2, and 0.92 moles of H2 at a total pressure of 10.00 atm. After 4.51 mol of H2 are added, what is the new total pressure

Reviews

Write a Review

Chemistry Questions & Answers

  The vapor pressure of water to find the mass of glucose

The vapor pressure of water at 25 degrees C is 23.8 torr. Determine the mass of glucose (MW=180.0 g/mol) needed to add to 500.0 g of water to change the vapor pressure to 23.1 torr.

  Utilize free energy to quantify how much more stable

The strength of an acid and therefore the stability of its conjugate base increases with decreasing pKa. Utilize free energy to quantify how much more stable chloroacetate is than acetate at 298 K.

  State the total pressure inside the container at equilibrium

If 10.2 g of ammonium carbamate is introduced into a 0.500 L container, what is the total pressure inside the container at equilibrium

  Explain if the freezing point depression of water

If the freezing point depression of water is -1.86 degrees C/M, what would be the freezing point of this solution

  Define aqueous solutions nh4cl

Consider these aqueous solutions: 0.20m NH4Cl, 0.20m CaCl2, 0.25m NaCl, and 0.30m sugar. Assume these are all ideal solutions. Which solution has the lowest vapor pressure

  What mass in kg of rain falls

if a raindrop weighs 65 mg on average and 5.1x10^5 raindrops fall on a lawn every minute what mass in kg of rain falls in 1.5 hours

  Fuel dragsters and funny cars burn nitromethane as fuel

Problem- Top fuel dragsters and funny cars burn nitromethane as fuel according to the following balanced combustion equation- 2CH3NO2(l)+3/2O2(g)?2CO2(g)+3H2O(l)+N2(g)

  Explain the initial concentration of co(nh3)5br2+ is 0.100 m

The reaction is first order in Co(NH3)5Br2+ the rate constant at 25 ?C is 6.3×10?6 s?1 and the initial concentration of Co(NH3)5Br2+ is 0.100 M.

  Depicts the experimental outcome for a titration analysis

Draw the experimental outcome for a titration analysis involving a titrant and titrand (the pH vs. volume titrant added response curve), wherein the titrand is the weak, monoprotic base aniline (0.05000 F, 0.10000 L), and the titrant is a strong m..

  Compute the concentration in molarity of a naoh solution

Compute the concentration (in molarity) of a NaOH solution if 35.0 mL of the solution are needed to neutralize 12.0 mL of a 0.312MHCl solution

  Find out the equilibrium constants for the acid-base

Write net Bronsted equations and determine the equilibrium constants for the acid-base reactions that occur when aqueous solutions of the following are mixed.

  What is the kinetic energy of electrons ejected

the threshold wavelength for potassium metal is 564 nm. what is its work? what is the kinetic energy of electrons ejected if radiation of wavelength 410 nm is used?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd