Find out the lime and soda ash dose

Assignment Help Chemistry

Reference no: EM13653159

Determine the lime and soda ash dose, in mg/L as CaCO3, to soften the following water to a final hardness of 90.0 mg/L as CaCO3.

Ca=137 mg/L as CaCO3
Mg=40.0 mg/L as CaCO3
HCO3-=197 mg/L as CaCO3
CO2=9.0 mg/L as CaCO3

Reference no: EM13653159

Questions Cloud

Evaluate the fundamental wavelength for this string : A guitar string is 60 cmlong. The string has a mass of 1.8g and is under a tensionof 945N. Calculate the fundamental wavelength for this string

Explain the inital moles of ca in the cup : If I add 0.495 g of solid calcium in a cup and of 100.0mL of deionized water. What is the inital moles of Ca in the cup

Find what is the wavelength of the waves on the string : One end of a string, 15 mlong, is moved up and down with a simple harmonic motion at a frequency of 30 Hz. What is the wavelength of the waves on the string

How fast must the shuttle bemoving when the release occurs : The space shuttle releases a satellite into a circular orbit715 km above the Earth. How fast must the shuttle bemoving (relative to Earth) when the release occurs?

Find out the lime and soda ash dose : Determine the lime and soda ash dose, in mg/L as CaCO3, to soften the following water to a final hardness of 90.0 mg/L as CaCO3.

Glass is placed between plates-voltage across capacitor : A capacitor with air between its plates is charged to 100 V and then disconnected from the battery. When apiece of glass is placed between the plates, the voltage across thecapacitor drops to 30 V.

How much so2 gas required to react potassium solution : How many mL of SO2 gas (density= 2.6288 kg m^-3) are requied to react with 125 mL of .20 M potassium permaganate solution

What force is the car exerting on the truck : A bulldozer is pushing a car and a truck sideways. the coefficientof kinetic friction between the car's and the truck's tries and thepavement is 0.9. the car has a mass of 1.70 x 10^3 kg and the truckhas a mass of 4.2 x 10^3 kg. what force is the ..

Obtain the fraction of kinetic energy lost in the collision : A 0.30 kg puck, initially at rest on a frictionless horizontalsurface, Find the fraction of kinetic energy lost in the collision

User Account

All Pages