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A hydrated compound contains 1 mole of cation M, 3 mole of anion A, and 2 moles of water. The correct formula is
a. 2MA3·H2Ob. MA2·3H2Oc. MA2·3H2Od. MA3·2H2O
Q- Light is emitted when
a. electrons in excited states return to their ground states.b. the energy of a photon is absorbed by an atom.c. electrons get excited to higher energy orbitals.
Q- The water molecules in a hydrate are very tightly bound and cannot be removed by heating.
True
False
2 NO(g) +Cl2->2NOCL(g) the observed rate law is Rate= K(NO)^2(Cl2). What is the reaction order with respect to nitrohen monoxide with respect to Cl2? Wht id the overall order
what is the molar concentrations for those two. The solution volumes are additive. Thank you so much I can't figure this out and I've been looking at it for 2 hours. I need it for my lab report.
Discuss the common-ion effect by comparing the solubility of CaCO3 in 3.0 x 10^2 mL of water and in the presence of 0.015 mol of Ca(NO3)2.
How many grams of NaOH are contained in 230.0 mL of a 0.800 M sodium hydroxide solution?
Determine the rate constant for each of the following first-order reactions. In each case, write the rate law for the rate of loss of A. a) 2 A B + C
What is the power output of the turbine? H1= 1322.6 Btu/lbm v1=3.058 (ft)^3/lbm H2= 1148.6 Btu/lbm v2=78.14 (ft)^3/lbm
spontaneous at high temperature or spontaneous at low temperature. (a) The temperature of a sample of Co(s) is lowered from 60°C to 25°C. (b) Ethyl alcohol evaporates from a beaker.
A sample of hydrogen gas collected at STP occupies a volume of 31.6 L. How many moles of gas does the sample contain? answer in mol please
Enough of a monoprotic acid is dissolved in water to produce a 1.59 M solution. The pH of the resulting solution is 2.88. Calculate the Ka for the acid. Ka=?
A gas cylinder containing 6.38 mol of neon has pressure of 491mmHg at 295k. If 3.22 mol helium is added at constant temp and pressure, what will be the pressure in the cylinder
Data: 2Ba(s) + O2(g) => 2BaO(s) ?H = -1107.0 kJ Ba(s) + CO2(g) + 1/2O2(g) => BaCO3(s) ?H = -822.5 kJ Given the data above, calculate ?H for the reaction below
Using the table of polyatomic ions, write the correct chemical formula for the following ionic compound. Use the Solubility Rules to write the dissociation equation when the ionic compounds are placed in water.
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