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- Show work using conversion factors Answer key: #37d 1.250 moles CO2 #37e 4.92 mole HCl #37f 7.1422 moles HCl ( fixed 10/14/2020) #37g 143 g CO2Show work using conversion factors Answer Key:#37a CaCO3 + 2HCl --> CaCl2 + H2O + CO2 #37b 36.46 g/mol HCl #37c 100.09 g/mol CaCO3 #37d 1.250 moles CO2 #37e 4.92 mole HCl #37f 7.1422 moles HCl ( fixed 10/14/2020) #37g 143 g CO2Give typed full explanation After heating 1.1929g CaCO3 and MgCO3 for some minutes the mass of the mixture decreased to 0.8015. The %comp of CaCO3 turned out to be 54.29% and MgCO3 %comp is 45.71%. Calculate the percent error/percent yield.
- What is the mass % of isopentyl acetate given the following information.Rx = 0.569Area of Isopentyl acetate peak = 197Area of Isopentyl alcohol peak = 145What is the average ratio in this chart? Please show me the calculation too! Sample 1 2 3 Calculations for sample 1 Mass of aluminum dish 1.24g 1.26g 1.24g - Mass of aluminum dish + Epsom salt 1.70g 1.94g 1.80g - Epsom salt, original (hydrated) mass 0.46g 0.68g 0.56g 1.70g – 1.24g = 0.46g Mass of aluminum dish + Epsom salt after heating 1.42g 1.62g 1.61g Epsom salt, heated (dehydrated) mass 0.18g 0.36g 0.37g 1.42g- 1.24g = 0.18g Mass of water 0.28g 0.32g 0.19g 0.46g – 0.18g = 0.28g Moles of magnesium sulfate 0.0015mol 0.0030mol 0.0031mol 0.18g x (1mol/120.37g)= 0.0015mol Moles of water 0.016mol 0.018mol 0.011mol 0.28g x (1mol/18.02g) = 0.016mol Ratio of moles water: moles of magnesium sulfate 32:3 18:3 11:3.1 0.016 : 0.0015= 32:3 Average RatioPlease do not round off sig figs in calculations until final answer. Thank you.
- How can I round this number? Example: Cp = qmetal = -365.4 cal = 0.0501 cal/g°C m∆T (109.7g)(-66.5°C) help me with this Cp = qmetal = -77.0 cal = 0.9803921cal/g°C m∆T (109.7g)(-66.5°C)Mass of phenacetin used: _________1.10_________ Mass of recovered phenacetin: _____1.22_____________ Percent recovery of phenacetin: ____________________ Mass of benzil used: _______0.67___________ Mass of recovered benzil: __________________ Percent recovery of benzil: __4.34__________________ Sample calculations for percent recovery:Chemistry pls help, I dont understand how this software wants me to enter the answer. its asking lfr the starting amount but its not taking it in the way Im putting it
- Calculate the % (m/m) of helium gas in a mixture containing 15.0 g of helium gas and 45.0 g of nitrogen gas. Note that Nitrogen gas is a diatomic molecule.Answer = _______A compound contains only Mn and F. The ratio of Mn and F is 2.54 moles of F per 1 mole of Mn. If the empirical formula is expressed at Mnfx, what is the numerial value of x?Deionized water is added to a 138.0 mL sample of 1.103 M oxalic acid to dilute it to 0.436 M. What volume of water, in mL, was added to dilute the sample? Round answer to correct sig figs.