1.Given the following solutions, which is more concentrated?HINT: Msolute/Msolution x100=____NOTE: Answer nos. 1-19 0nly * a.3 grams of salt in 10 mL water
b.5 grams of salt in 10 mL water
c.18 grams or salt in 90 mL water
d.20 grams of salt in 90 mL water
2. Becky bought 100 mL rubbing alcohol containing 20% ethyl alcohol. What is the volume of ethyl alcohol does the rubbing alcohol contain?HINT:20/100=__X100 *
a.10 ml ethyl alcohol
b.20 mL ethyl alcohol
c.30 mL ethyl alcohol
d.40 mL ethyl alcohol
3. The label of the 200 mL rubbing alcohol that Princess Bubblegum bought shows that it contains 40% ethyl alcohol. What is the volume of ethyl alcohol does the rubbing alcohol contain?HINT:200ml x40=___/100=___ml *
a.40 mL
b.200 mL
c.100 mL
d.80 mL
4. A medical solution used in a hospital is 0.9% by mass of sodium chloride (NaCl). how many grams of NaCl are present in 100 g of the solution?HINT:100g x.9=___/100=___g *
a.0.9 g NaCl
b.99.1 g NaCl
c.90 g NaCl
d.111.1 g NaCl
5. Brine solution is used in food preservative. What is the concentration in percent by weight of 20 g salt dissolved in 60 g of water to produce a brine solid? *
a.15%
b.20%
c.25%
d.30%
pakisagot ng maayos nonsense refort
btw TLE subject
b.5 grams of salt in 10 mL water
c.18 grams or salt in 90 mL water
d.20 grams of salt in 90 mL water
2. Becky bought 100 mL rubbing alcohol containing 20% ethyl alcohol. What is the volume of ethyl alcohol does the rubbing alcohol contain?HINT:20/100=__X100 *
a.10 ml ethyl alcohol
b.20 mL ethyl alcohol
c.30 mL ethyl alcohol
d.40 mL ethyl alcohol
3. The label of the 200 mL rubbing alcohol that Princess Bubblegum bought shows that it contains 40% ethyl alcohol. What is the volume of ethyl alcohol does the rubbing alcohol contain?HINT:200ml x40=___/100=___ml *
a.40 mL
b.200 mL
c.100 mL
d.80 mL
4. A medical solution used in a hospital is 0.9% by mass of sodium chloride (NaCl). how many grams of NaCl are present in 100 g of the solution?HINT:100g x.9=___/100=___g *
a.0.9 g NaCl
b.99.1 g NaCl
c.90 g NaCl
d.111.1 g NaCl
5. Brine solution is used in food preservative. What is the concentration in percent by weight of 20 g salt dissolved in 60 g of water to produce a brine solid? *
a.15%
b.20%
c.25%
d.30%
pakisagot ng maayos nonsense refort
btw TLE subject
Add an Answer
More Questions From This User See All