What is the your free chlorine levels in ppm if you have 0.77 mg of Chlorine...
What is the your free chlorine levels in ppm if you have 0.77 mg of Chlorine in 200 mL (1.0 g/mL density for water) of your water sample?
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What is the your free chlorine levels in ppm if you have 0.77 mg
of Chlorine...
The concentration of chlorine in pool water is 1.50 ppm. What mass of chlorine is present...
The concentration of chlorine in pool water is 1.50 ppm. What mass of chlorine is present in 3.78x108 g of water (which is equivalent to 100,000 gallons of water)? Answer in "g Chlorine"
You are asked to make a 50 ppm solution of benzene in alcohol. You have 200...
You are asked to make a 50 ppm solution of benzene in alcohol. You have 200 mL of alcohol (density 0.84 g/mL). How many mL of benzene (density 0.96 g/mL) do you need to add to add to the alcohol to make it 50 ppm Benzene in mixture? (10)
4) what volume (mL) of a 3.1% (by mass) chlorine solution (density= 1.15 g/mL) contains enough...
4) what volume (mL) of a 3.1% (by mass) chlorine solution (density= 1.15 g/mL) contains enough chlorine to raise the chlorine concentration of a 27000 gal swimming pool to 2.5 ppm (by mass). Assume a density of 1.00 g/mL for the pool water. (4 pts)
helpppp Under certain water conditions, the free chlorine (hypochlorous acid, HOCI) in a swimming pool decomposes...
helpppp
Under certain water conditions, the free chlorine (hypochlorous acid, HOCI) in a swimming pool decomposes according to the law of uninhibited decay. After shocking a pool, the pool boy, Geoff, tested the water and found the amount of free chlorine to be 2.8 parts per million (ppm). Twenty-four hours later, Geoff tested the water again and found the amount of free chlorine to be 2.4 ppm. What will be the reading after 2 days (that is, 48 hours)? When...
2. a) What is the concentration of chlorine in mg/L of household bleach that contains 6...
2. a) What is the concentration of chlorine in mg/L of household bleach that contains 6 percent by weight of Cl2. Note the density of water is approximately 1,000 kg/m and specific gravity of Cl2 = 1.41 at 20 °C. b) If you are to use this bleach solution to treat 1,000 L water for disinfection, what is the volume of the bleach solution should you use to obtain a target chlorine concentration 1 mg/L?
what percent of adults do you expect to have cholesterol levels between 150 and 160 mg/dL...
what percent of adults do you expect to have cholesterol
levels between 150 and 160 mg/dL
The cholesterol levels of an adult can be descebed by a normal model with a mean of 181 mg/d and a standard deviation of 21. 130 22 2 b) What percent of adults do you expect to have cholesterol levels over 200 mg/d? 18.41% Round to two decimal places as needed ) c) What percent of adults do you expect to have cholesterol levels...
The concentration of Cu2+ ion in a sample of spring water is 5.3 ppm. What mass...
The concentration of Cu2+ ion in a sample of spring water is 5.3 ppm. What mass of Cu2+ ion is present in 6.5 L of this pring water, which has a density of 1.00 g/mL? O 2.6 g 0 0.068 g O 0.034 g O 0.34 g
You have 615 mL of chlorine trifluoride gas at 733 mmHg and 25°C. What is the mass (in g) of the sample? g
You have 615 mL of chlorine trifluoride gas at 733 mmHg and 25°C. What is the mass (in g) of the sample? g
2. What is the concentration of NaBr, in ppm, of a solution composed of 35.7 mg...
2. What is the concentration of NaBr, in ppm, of a solution composed of 35.7 mg NaBr and 15.7 g of water.
what is the mass concentration in mg/L and ppm of a solution containing 1 g of...
what is the mass concentration in mg/L and ppm of a solution containing 1 g of solids in 10 L of methanol? methanol= 0.792 g/mL
You are asked to make a 50 ppm solution of benzene in alcohol. You have 200 mL of alcohol (density 0.84 g/mL). How many mL of benzene (density 0.96 g/mL) do you need to add to add to the alcohol to make it 50 ppm Benzene in mixture? (10)
4) what volume (mL) of a 3.1% (by mass) chlorine solution (density= 1.15 g/mL) contains enough chlorine to raise the chlorine concentration of a 27000 gal swimming pool to 2.5 ppm (by mass). Assume a density of 1.00 g/mL for the pool water. (4 pts)
helpppp
Under certain water conditions, the free chlorine (hypochlorous acid, HOCI) in a swimming pool decomposes according to the law of uninhibited decay. After shocking a pool, the pool boy, Geoff, tested the water and found the amount of free chlorine to be 2.8 parts per million (ppm). Twenty-four hours later, Geoff tested the water again and found the amount of free chlorine to be 2.4 ppm. What will be the reading after 2 days (that is, 48 hours)? When...
2. a) What is the concentration of chlorine in mg/L of household bleach that contains 6 percent by weight of Cl2. Note the density of water is approximately 1,000 kg/m and specific gravity of Cl2 = 1.41 at 20 °C. b) If you are to use this bleach solution to treat 1,000 L water for disinfection, what is the volume of the bleach solution should you use to obtain a target chlorine concentration 1 mg/L?
what percent of adults do you expect to have cholesterol
levels between 150 and 160 mg/dL
The cholesterol levels of an adult can be descebed by a normal model with a mean of 181 mg/d and a standard deviation of 21. 130 22 2 b) What percent of adults do you expect to have cholesterol levels over 200 mg/d? 18.41% Round to two decimal places as needed ) c) What percent of adults do you expect to have cholesterol levels...
The concentration of Cu2+ ion in a sample of spring water is 5.3 ppm. What mass of Cu2+ ion is present in 6.5 L of this pring water, which has a density of 1.00 g/mL? O 2.6 g 0 0.068 g O 0.034 g O 0.34 g
You have 615 mL of chlorine trifluoride gas at 733 mmHg and 25°C. What is the mass (in g) of the sample? g
2. What is the concentration of NaBr, in ppm, of a solution composed of 35.7 mg NaBr and 15.7 g of water.
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