Molar mass NaOH =23+16+1=40 g/mol
<span> 0.100 M= 0.100 mol/L
</span>500 ml=0.500 L
0.500L*0.100 mol/L=0.0500 mol NaOH we need to prepare 500 ml solution
0.0500 mol NaOH*40g/1mol=2 g NaOH we need to prepare 500 ml solution
we need 2 g NaOH, dissolve it in small amount of water, and dilute it with water up to 500 mL
Answer:
An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings
There will be a 25% chance that the plant will have wrinkled seed.
Explanation:
The round seeds are dominant and can be considered homozygous for round seeds will have alleles RR
The wrinkled seeds are recessive and can be considered homozygous for wrinkled seeds will have alleles rr
When these are crossed
r r
R Rr Rr
R Rr Rr All the progeny are Heterozygous round seed
When These are crossed with plant heterozygous for round seeds
RrXRr
R r
R RR Rr
r Rr rr
The genotype ratio is 1:2:1 1 homozygous round, 2 heterozygous round, 1 homozygous wrinkled.
The phenotype ratio is 3:1 3 round and 1 wrinkled
Hence 25 % of the plants will have wrinkled seeds
1) All the CO2 comes from the C24 H30 N3 O
2) To balance C from CO2 with C from C24, the ratio of cC24 H30 N3 O to CO2 is 24 / 1
3) Convert 1.20 g of CO2 to number of moles
number of moles = mass in grams / molar mass
mass = 1.20 g
molar mass = 12.01 g/mol + 32.00 g/mol = 44.01 g/mol
number of moles = 1.2 g / 44.01 g/mol = 0.0273 mol
4) proportion
1 mol C24 H30 N3 O / 24 mol CO2 = x / 0.0273 mol CO2
=> x = 0.0273 mol CO2 * 1 mol C24H30N3O / 24 mol CO2 = 0.00114 mol C24H30N3O
5) Convert 0.00114 mol C24H30N3O to grams
molar mass = 376.5 g/mol
mass = 0.00114 mol * 376.5 g/mol = 0.429 g
6) mass percent in the mixture
mass percent = (mass of lsd / mass of mixture) * 100 = (0.429g / 1.0g) * 100 = 42.9%
Answer: 42.9%
Answer:
Force = Mass × Acceleration
Thus, F = 1,000 × 8
F = 8,000N
Thus force needed is 8,000N
