When 0.243 g of mg metal is combined with enough hcl to make 100 ml of solution in a constant-pressure calorimeter, the following reaction occurs:
mg(s) + 2 hcl(aq) → mgcl2(aq) + h2(g)

if the temperature of the solution increases from 23.0 ∘c to 34.1 ∘c as a result of this reaction, calculate δh in kj/mol of mg. assume that the solution has a specific heat of 4.18 j/g∘c.

when 0.243 of metal is combined with enough to make 100 of solution in a constant-pressure calorimeter, the following reaction occurs:

if the temperature of the solution increases from 23.0 to 34.1 as a result of this reaction, calculate in of . assume that the solution has a specific heat of 4.18 .

−19.1 kj/mol
−111 kj/mol
−191 kj/mol
−464 kj/mol
−961 kj/mol

Ineed someone to see if my answers are correct! if any are wrong let me know what the correct answers would be and how to get that answer! 1. how many moles of sodium chloride are in 28 grams od nacl? a. 265 mole naclb. 856 mole naclc. 479 mole of nacld. 1.2 mole nacl < my choice2. 734 grams of lithium sulfate (li2so4) are dissolved to make 2500 ml of solution what is rhe molaratiy? a. 2.67 mb. 4.56 mc. 3.89 m < my choiced. 1.78 m3. how many grams of cacl2 would be dissolved in 3.0 l of a 0.50 m solution of cacl2? a. 250 g cacl2 b. 166.5 g cacl2c. 113.65 g cacl2d. 98 g cacl2 < my choice4. suppose you had 58.44 g of nacl and you dissolved it in exactly 2.00 liters. the molarity if the solution would be 0.5 mtrue < my choicefalse 5. i would need 22g of naoh to make a 3.0 m solution using 250 ml of solvent.true < my choicefalse6. identify the solute: you have a .0195 m solution made from using 6.5 g of solute and 3 l of solvent. identify the solute by solving for molar weight.a. the solute is nacl because the molar weight is 58.43 g/mol < my choiceb. the solute is h2so4 because the molar weight is 98.06 g/molc. the solute is cacl2 because the molar weight is 111.11 g/mol

What are the similarities of physical and chemical change ?

What is the independent variable in this investigation? mass volume sample number substance density