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!
Researchers analyzing an unknown hydrocarbon with chemical formula CxHy found that 225 grams of O2(g) were required for complete combustion of 1.0 mol CxHy, to form CO2(g) and H2O(g) only. Unfortunately, a faulty valve between the furnace and absorbers allowed some of the gas produced to escape before the mass of CO2(g) and H2O(g) were measured. The researchers also know from previous reactivity experiments that CxHy has at least one ?-bond. It will take at least a week to have a replacement valve sent from the manufacturer, but the grant proposal, which requires the molecular formula, is due on Monday. Can you help determine the molecular formula of the compound? [Hint: from the balanced equation for the complete combustion of CxHy it is possible relate the moles of O2(g) required to the unknown subscripts x and y. Then see if you can find a formula satisfying the relationship.
Na3PO4+CaCl2 ---> Ca3(PO4)2+NaCl if 0.996 g of Na3PO4 are provided, how many grams of Ca3(PO4)2 should be formed?
how many moles of excess reactant are present when 2.90*10^2 ml of .182 M sulfuric acid reacts with .423 L of .170 M sodium hydroxide to form water and aqueous sodium sulfate?
What is the rate constant for the reaction at 85°C?
a 70g piece of ice at 0c is added to a sample of water at 8c, all of the ice melts and the temp of the water decreases to 0c, how many grams of water were in the sample?
base catalyzed reaction of vanillin with acetic anhydride? They produce slightly different products, but how and why
Update the backbone to properly show a tripeptide, and add side chains and hydrogen atoms to show Gly-Phe-Tyr.
What is the molar solubility of SrSO4 in pure water at 25ºC?
How would you write the Sn2 mechanism of sodium chlorophenolate with sodium chloroacetate?
The plasma (HCO3-) of an individual living at a high elevation is 18.5 meq/L. If this concentration of bicarbonate fully compensates the decrease
Strawberries contain about 15 wt% solids and 85 wt% water.To make strawberry jam, crushed strawberries and sugar are mixed in a 45:55 mass ratio, and the mixture is heated to evaporate water until the residue contains one-third water by mass.
the structure Y---X---Y (2 lone pairs around X) could be abbreviated as XY2Z2. Classify these structures according to their shape.
Calculate the pH of a solution prepared by dissolving 0.40g of Na2O in enough water to make 0.600 L of solution? Express your answer using two decimal places.
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