Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A vitamin C 142g/mol tablet weighing 0.562g is crushed as well as dissolved in enough water to form 500mL of solution. Ten milliliters of this solution is after that diluted to 250mL. The absorbance of the solution is 0.241 in a 1cm cell. Explain what is the percentage of vitamin C in the tablet. The molar absorptivity is 7415.
Calculate the pH of the following solution: A solution prepared by mixing 10.00 mL of 0.500 M acetic acid with 0.353 g of sodium acetate (NaCH3CO2) and diluting to 250.00 mL
calculate q, w, and change in enthalpy for the helium in the balloon. (the molar heat capacity for helium gas is 28.8 J/ degrees C mol.)
1. the combustion of ammonia in the presence of excess oxygenyields no2g and h2og4nh3g 7o2g rarr 4no2g 6h2ogthe
A solution of 0.264 M NaOH is used to neutralized 54.0 mL H3PO4 solutions. if 1.0 mL of NaOH is required to reach end point what is the molarity of H3PO4
A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10?6m. Could the electron make a transition from the ground state to a higher energy level
whenever the variables in a system are constrained a degree of freedom is lost for each one so constrained. suppose for
Explain why it takes longer time when anyone cook an egg in boiling water while camping at in elevation of 0.5km in the mountain than it does it home.
Convert lb mol CaC2 feed to lb and calculate lb inerts added. The total lb solids in the slurry is then the sum of the Ca(OH)2 plus inerts. In calculating the water added, remember that some is consumed in the reaction.]
Suppose 50.0 mL of 0.250 M CoCl2 solution is added to 25.0 mL of 0.350 M NiCl2 solution. Calculate the concentration, in moles per liter, of each of the ions present after mixing. Assume that the volumes are additive.
The pH of a certain solution is 4.5. What is the concentration of H+(aq) ions in the solution. A) 3.16 x 10^-5 M B) 3.16 x 10^4 M
What is the oxidation half reaction, Reduction half reaction, and overall reaction for Chloride + permanganate --->
For the reaction 2A + B ? C + D calculate the rate-law expression and the value of the rate constant from the following data: Initial [A] mol/liter Initial [B] mol/liter Initial rate
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd