General Chemistry Answers

What is the molar mass of 1.40 mol of Ca?

How many moles of CO₂ will be produced when you burn 12.5 moles of C₂H₄? ( C₂H₄ + 3 O₂ ---> 2 CO₂ + 2 H₂O )

when 50 ML of 1.00 molar HCL and 50 ML of 1.00 molar NaOH react in a coffee cup calorimeter the observed change in temperature is 6.5°C. Use equation to calculate q solution

When exactly 50% of a 1.4 M solution is poured into a beaker , what is the concentration of the solution in the beaker (in M)? 

Write an essay about the situations in real life that are analogous to the concept of limiting and excess reagents. 

4. A 1.500-g sample of gasoline was burned in a bomb calorimeter whose total heat capacity is 13.20 KJ/oC. The temperature of the calorimeter increased from 23.00oC to 27.50oC.

What is the experimental heat of combustion of kerosene?

Two moles of gas A at 35 degF and 35 grams of gas B at 35 degC were combined and their temperature become 20 degC. Gases A & B have specific heats of 5/3 R and 7/2 R, respectively. Use R = 8.3145 J/mol-K, 1 BTU = 1055 J

How much is the heat involved in the process in BTU?

Two moles of gas A at 35 degF and 35 grams of gas B at 35 degC were combined and their temperature become 20 degC. Gases A & B have specific heats of 5/3 R and 7/2 R, respectively. Use R = 8.3145 J/mol-K, 1 BTU = 1055 J

Molecular weight of Gas B?

Calculate the molarity of the NaCl

NaCl solution when 14.6  g

 g of NaCl

NaCl is dissolved in 100 mL

mL of water.

What is the percent by mass of a solution made with 101.0 g NaOH and 385.0 g water